An engine case positioning tool for a chainsaw

Abstract

The application discloses an engine box positioning tool for a chainsaw and relates to the technical field of engine box positioning tools.The engine box positioning tool for the chainsaw comprises a base and a clamping mechanism, the clamping mechanism is arranged on the top of the base, the clamping mechanism comprises a first sliding pipe, a first spring and a first sliding cylinder, the first sliding pipe is arranged on the inner side of the first sliding cylinder, the first sliding cylinder and the second sliding cylinder are uniformly clamped to the outer surface of the engine through the screw rod principle and the gear principle, then the first sliding cylinder and the second sliding cylinder which are uniformly clamped to the outer surface of the engine are provided with further supporting force through the hydraulic principle, the instability of the spring is compensated, the clamping stability is improved through the increase of the clamping area and the angle, the aluminum engine shell is prevented from being damaged due to excessive clamping force, and economic losses are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engine box positioning tooling, in particular to an engine box positioning tooling for a chainsaw. BACKGROUND

[0002] Engines are one of the main power sources of modern power machinery, and their core function is to convert energy into mechanical energy to provide driving force for various equipment. Their energy sources are diverse, and the most common ones are fuels such as gasoline and diesel. For example, the internal combustion engine in a car will go through the cycle of intake, compression, combustion, and exhaust to release heat energy from fuel burning, and then push the components to move and convert into mechanical power. There are also electric motors that work on electricity, or fuel cell engines that use hydrogen gas. From daily cars and motorcycles, to agricultural tractors and industrial generators, to ships and small aircraft, many devices that need to operate with power cannot do without the use of engines.

[0003] In order to accurately fix the engine box for a chainsaw at the preset detection reference position, avoid detection errors caused by box deviation and shaking when manually holding or randomly placing, ensure that each detection is based on the same measurement coordinate system, guarantee the consistency of batch detection data, and cope with the vibration caused by the high-speed rotating engine during testing, a positioning tooling for the engine box of a chainsaw is needed.

[0004] However, the existing positioning tooling for the engine box of a chainsaw has the following shortcomings:

[0005] The positioning tooling for the engine box of a chainsaw on the market has the following problems when clamping the engine: due to the complex shape and structure of the engine box of a chainsaw, the clamping mechanism lacks the area and angle of clamping the engine, resulting in unstable clamping effect. In order to improve the clamping stability, some positioning toolings increase the clamping force, which easily damages the aluminum engine shell, causing economic losses.

[0006] Therefore, we propose a positioning tooling for the engine box of a chainsaw to solve the above problems. SUMMARY

[0007] The present application aims to provide an engine box positioning tool for a chainsaw, which is used for engine performance test clamping. The engine is first placed inside the equipment, the top hydraulic device is started to limit the top space, then the second motor is started, the second limiting rod is driven to move up through the gear cylinder and the second gear, the first leaf spring, the second sliding pipe and the outer second sliding cylinder are pushed to move up, until the first second leaf spring is attached to the arc bottom of the crankcase and is stationary, the remaining leaf springs continue to be attached, the second motor is locked, then the two first motors are started, the first threaded sleeve is driven to rotate through the output shaft, the gear disc and the first gear, the first threaded rod is fixed with the limiting sliding rod and is driven to move forward, the first sliding cylinder is attached to the crankcase on both sides according to the above-mentioned logic for clamping and positioning, finally the main and auxiliary hydraulic chambers are pressurized, the sliding cylinder is fixed by the pressure detector, the pushing force and the supporting force are enhanced, the threaded rod and the gear principle are used for uniform clamping, the hydraulic pressure compensates for the instability of the spring, and the aluminum shell is prevented from being damaged.

[0008] To achieve the above object, the present application provides the following technical scheme: an engine box positioning tool for a chainsaw, comprising a base and a clamping mechanism, wherein the clamping mechanism is arranged on the top of the base.

[0009] The clamping mechanism comprises a main hydraulic chamber, a first sliding pipe, a first spring and a first sliding cylinder, the first sliding pipe is arranged on the inner side of the first sliding cylinder, the first spring is arranged on the inner side of the first sliding pipe and is used for supporting the first sliding cylinder, the outer side of the main hydraulic chamber is provided with a first motor, the output end of the first motor penetrates the main hydraulic chamber and is provided with an output shaft, the outer side of the output shaft is provided with a gear disc, the inner wall of the main hydraulic chamber is provided with a first support, the inner side of the first support is provided with a first fixing frame, the inner side of the first fixing frame is provided with a plurality of rotating cylinders, the inner side of the rotating cylinder is slidably connected with a first limiting sliding rod, the outer side of the first limiting sliding rod is provided with a first threaded rod, the outer side of the first threaded rod is provided with a first threaded sleeve, the first threaded sleeve is threadedly connected with the first threaded rod, the outer side of the first threaded sleeve is provided with a rotating groove, the outer side of the first threaded sleeve is provided with a first gear, the first gear is engaged with the gear disc, the outer side of the first threaded rod is provided with a first sliding pipe, the inner side of the first sliding pipe is provided with a first spring, the outer side of the first spring is slidably connected with a first sliding cylinder, the outer side of the first sliding cylinder is slidably connected with a sealing ring, the sealing ring is arranged on the inner side of the main hydraulic chamber, the outer side of the base is provided with a bottom plate, the top of the bottom plate is provided with a second motor, the output end of the second motor is provided with a gear cylinder, the inner side of the gear cylinder is provided with two second gears, the top of the second gear is provided with a second threaded rod, the outer side of the second threaded rod is provided with a second limiting sliding rod, the outer side of the second limiting sliding rod is slidably connected with a fixed sealing block, the second threaded rod is threadedly connected with the second limiting sliding rod, the top of the fixed sealing block on one side is located at the bottom of the main hydraulic chamber, the top of the second limiting sliding rod penetrates the main hydraulic chamber and is provided with a first leaf spring, the top of the fixed sealing block on the other side is provided with a secondary hydraulic chamber, the top of the second limiting sliding rod on the other side penetrates the secondary hydraulic chamber and is provided with another first leaf spring, the top of the first leaf spring is provided with a plurality of second sliding pipes, the inner side of the second sliding pipe is provided with a second spring, the outer side of the second sliding pipe is slidably connected with a second sliding cylinder, the inner side of the second sliding cylinder is rotatably connected with a rotating shaft, the top of the rotating shaft is provided with a second leaf spring, and the top of the second leaf spring is provided with an engine.

[0010] Preferably, the top of the engine is provided with a top hydraulic device, the top of the top hydraulic device is provided with a top plate, the outer side of the top plate is provided with a support plate, the bottom of the support plate is arranged on the outer side of the base, the bottom outer side of the first sliding cylinder and the second sliding cylinder are both provided with a booster ring, the booster ring is an annular metal ring, and the booster ring is used for increasing the pushing surface of the first sliding cylinder and the second sliding cylinder by hydraulic pressure.

[0011] Compared with the prior art, the present application has the following advantages:

[0012] 1. The application is in the performance test of chainsaw engine, first place the engine inside the equipment, start the top hydraulic device to limit the top space, then start the second motor to drive the gear cylinder and the second gear to rotate in turn, the second gear drives the second limiting rod to move up through the second threaded rod, then drives the first leaf spring and the second slide pipe to move up, the second slide cylinder outside the second slide pipe slides, until the first second leaf spring is attached to the arc bottom of the crankcase and is static, the rest of the second leaf spring continues to move up and attach to the other parts of the arc bottom of the crankcase, after all the limiting, the second motor is locked and stopped, then start the first motor on both sides of the engine, the motor drives the first gear to rotate through the output shaft and the gear disc, the first gear drives the first threaded sleeve to rotate in the rotating cylinder, the first threaded rod and the first limiting slide rod are fixed and cannot rotate, driven by the threaded sleeve to move forward, referring to the cooperation mode of the second slide pipe and the second slide cylinder, the first slide cylinder contacts and clamps the crankcase on both sides of the engine, and the positioning is completed, finally, according to the hydraulic principle, open the main and auxiliary hydraulic tanks to increase the internal pressure, combine the pressure detector value to fix the first slide cylinder and the second slide cylinder, and enhance the thrust and supporting force, thereby completing the clamping of the engine, through the threaded rod principle and the gear principle, the first slide cylinder and the second slide cylinder clamp the outer surface of the engine evenly, then through the hydraulic principle, the first slide cylinder and the second slide cylinder which clamp the outer surface of the engine evenly provide further supporting force, make up for the instability of the spring, thereby improve the clamping stability by increasing the clamping area and angle, avoid the damage of the aluminum engine shell caused by excessive clamping force, and avoid economic loss.

[0013] 2. Through the above operation, the engine can be clamped in multiple directions by placing the chainsaw engine in the equipment, without frequent angle adjustment, thereby improving the clamping speed and work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view structure perspective view of the engine box positioning tool for chainsaw in the application;

[0015] Figure 2 It is a structure split perspective view of the engine box positioning tool for chainsaw in the application;

[0016] Figure 3 It is a split perspective view of the clamping mechanism of the engine box positioning tool for chainsaw in the application;

[0017] Figure 4 It is a partial structure split perspective view of the clamping mechanism of the engine box positioning tool for chainsaw in the application;

[0018] Figure 5 It is an enlarged view of A in Figure 4

[0019] ​Figure 6 Figure is a structure split perspective view of another part of the clamping mechanism in an engine box positioning tool for a chainsaw.

[0020] In the figure: 1, base; 2, clamping mechanism; 201, main hydraulic chamber; 202, first motor; 203, output shaft; 204, toothed disc; 205, first support; 206, first fixed frame; 207, first limiting slide rod; 208, first threaded rod; 209, first threaded sleeve; 210, first gear; 211, first slide pipe; 212, first spring; 213, first slide cylinder; 214, sealing ring; 215, rotating groove; 216, rotating cylinder; 217, bottom plate; 218, second motor; 219, toothed cylinder; 220, second gear; 221, auxiliary hydraulic chamber; 222, fixed sealing block; 223, second limiting slide rod; 224, first leaf spring; 225, second slide pipe; 226, second spring; 227, second slide cylinder; 228, rotating shaft; 229, second leaf spring; 230, second threaded rod; 3, support plate; 4, engine; 5, top plate; 6, top hydraulic device. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0022] Embodiment 1, according to Figure 1 - Figure 3The motor case positioning tool for the chain saw is characterized in that the first limiting sliding rod 207 is slidably connected to the inner side of the rotating cylinder 216, the first threaded rod 208 is arranged on the outer side of the first limiting sliding rod 207, the first threaded sleeve 209 is arranged on the outer side of the first threaded rod 208, the first threaded sleeve 209 is in threaded connection with the first threaded rod 208, the rotating groove 215 is arranged on the outer side of the first threaded sleeve 209, the first gear 210 is arranged on the outer side of the first threaded sleeve 209, the first gear 210 is in meshing connection with the tooth disc 204, the first sliding pipe 211 is arranged on the outer side of the first threaded rod 208, the first spring 212 is arranged on the inner side of the first sliding pipe 211, the first sliding cylinder 213 is slidably connected to the outer side of the first spring 212, the sealing ring 214 is slidably connected to the outer side of the first sliding cylinder 213, the sealing ring 214 is arranged on the inner side of the main hydraulic chamber 201, the bottom plate 217 is arranged on the outer side of the base 1, the second motor 218 is arranged on the top of the bottom plate 217, the tooth cylinder 219 is arranged on the output end of the second motor 218, the two second gears 220 are arranged on the inner side of the tooth cylinder 219, the second threaded rod 230 is arranged on the top of the second gear 220, the second limiting sliding rod 223 is arranged on the outer side of the second threaded rod 230, the fixed sealing block 222 is slidably connected to the outer side of the second limiting sliding rod 223, the second threaded rod 230 is in threaded connection with the second limiting sliding rod 223, the top of the one-side fixed sealing block 222 is located at the bottom of the main hydraulic chamber 201, the first leaf spring 224 is arranged on the top of the second limiting sliding rod 223 and penetrates through the main hydraulic chamber 201, the top of the other-side fixed sealing block 222 is arranged on the top of the second limiting sliding rod 223 and penetrates through the auxiliary hydraulic chamber 221 and is arranged with another first leaf spring 224, the second sliding pipe 225 is arranged on the top of the first leaf spring 224, the second spring 226 is arranged on the inner side of the second sliding pipe 225, the second sliding cylinder 227 is slidably connected to the outer side of the second sliding pipe 225, the rotating shaft 228 is rotatably connected to the inner side of the second sliding cylinder 227, the second leaf spring 229 is arranged on the top of the rotating shaft 228,The top of the second leaf spring 229 is provided with the engine 4.

[0023] The effect achieved by the entire embodiment 1 is that the first motor 202 on both sides of the engine 4 is started, the first motor 202 drives the gear disc 204 through the output shaft 203, the gear disc 204 drives the first gear 210 to rotate, the first gear 210 drives the first threaded sleeve 209 to rotate inside the rotating cylinder 216, because the first threaded rod 208 in the first threaded cylinder is fixed with the first limiting sliding rod 207, the first threaded rod 208 is limited and cannot idle, and is driven forward by the rotating first threaded cylinder. Similarly, through the second sliding pipe 225, the second spring 226 and the second sliding cylinder 227, the first sliding cylinder 213 is in contact with and clamped on both sides of the crankcase, the positioning work is completed, according to the hydraulic principle, the main hydraulic chamber 201 and the auxiliary hydraulic chamber 221 are opened, so that the internal pressure is increased, the value of the pressure detector is observed, the first sliding cylinder 213 and the second sliding cylinder 227 are fixed in place, the pushing force and supporting force of the first sliding cylinder 213 and the second sliding cylinder 227 pushed by the first spring 212 and the second spring 226 are increased, the clamping of the engine 4 is completed, and then the performance test of the chainsaw engine 4 is carried out. First, place the engine 4 inside the equipment, start the top hydraulic device 6 on the top of the engine 4 to limit the space on the top of the engine 4, start the second motor 218 to drive the gear cylinder 219 to rotate, the gear cylinder 219 drives the second gear 220 to rotate, the second gear 220 drives the second limiting rod to move upward through the second threaded rod 230, the second limiting rod drives the first leaf spring 224 to move upward and lift the second sliding pipe 225, the second sliding cylinder 227 on the outside of the second sliding pipe 225 slides upward, until the surface of the first second leaf spring 229 is attached to the arc bottom of the crankcase, at this time, the first second leaf spring 229 is limited, and the second spring 226 is stationary due to the reaction force. When all the second leaf springs 229 are completely limited, the second motor 218 is locked and stopped rotating, the second leaf springs 229 are attached to the arc bottom of the crankcase, and the first sliding cylinder 213 is attached to both sides of the crankcase. This structure can adapt to the size difference of different types of chainsaw engine housings, reduce the cost of customized tooling, improve the application range and utilization rate of tooling, and evenly distribute the force on the engine housing during positioning through the multi-directional and multi-level limiting method. Avoiding the damage to the housing caused by the local stress concentration caused by traditional clamping, prolonging the service life of the engine housing, and reducing the economic loss caused by the damage of the housing.

[0024] Embodiment 2, according to Figure 2 - Figure 6As shown, the top of the engine 4 is provided with a top hydraulic device 6, the top of the top hydraulic device 6 is provided with a top plate 5, the outer side of the top plate 5 is provided with a support plate 3, the bottom of the support plate 3 is provided on the outer side of the base 1, the bottom outer side of the first sliding cylinder 213 and the second sliding cylinder 227 is provided with a booster ring, the booster ring is a ring-shaped metal ring, and the booster ring is used to increase the pushing surface area of the first sliding cylinder 213 and the second sliding cylinder 227 in the hydraulic chamber.

[0025] The effect achieved by the entire embodiment 2 is that the booster ring increases the pushing surface area of the first sliding cylinder 213 and the second sliding cylinder 227 in the hydraulic chamber, so as to improve the pushing force of the first sliding cylinder 213 and the second sliding cylinder 227, and improve the response speed and intensity.

[0026] The working principle of the entire device is as follows: when starting to test the performance of the chainsaw engine 4, first, directly place the engine 4 on the inner side of the device, then start the top hydraulic device 6 located at the top of the engine 4 to limit the space at the top of the engine 4, then start the second motor 218 to drive the gear cylinder 219 to rotate, the gear cylinder 219 drives the second gear 220 to rotate, the second gear 220 moves the second limiting rod upward through the second threaded rod 230, the second limiting rod moves the first leaf spring 224 upward and lifts the second sliding pipe 225 upward, the second sliding cylinder 227 on the outer side of the second sliding pipe 225 slides upward until the surface of the second leaf spring 229 is attached to the bottom of the crankcase arc, at this time, the first second leaf spring 229 attached to the bottom of the crankcase arc is in a static state due to the counterforce of the second spring 226. At this time, the other second leaf springs 229 continue to move upward and are attached to other parts of the bottom of the crankcase arc, respectively, until all the second leaf springs 229 are in a completely limiting state, then the second motor 218 is locked and stopped, then the first motor 202 located on both sides of the engine 4 is started, the first motor 202 drives the gear disc 204 through the output shaft 203, the gear disc 204 drives the first gear 210 to rotate, the first gear 210 rotates and drives the first threaded sleeve 209 to rotate inside the rotating cylinder 216, since the first threaded rod 208 in the first threaded cylinder is fixed with the first limiting sliding rod 207, at this time, the first threaded rod 208 cannot idle, but is moved forward by the rotating first threaded cylinder, by the same reason of the second sliding pipe 225, the second spring 226 and the second sliding cylinder 227, the first sliding cylinder 213 is in contact with the two sides of the crankcase with different outer heights and clamps them, at this time, the positioning work is completed, finally, according to the hydraulic principle, the main hydraulic chamber 201 and the auxiliary hydraulic chamber 221 are opened, so that the internal pressure of the main hydraulic chamber 201 and the auxiliary hydraulic chamber 221 increases, by observing the value of the pressure detector, the first sliding cylinder 213 and the second sliding cylinder 227 are fixed in place, the pushing force and supporting force of the first sliding cylinder 213 and the second sliding cylinder 227 pushed by the first spring 212 and the second spring 226 are increased, thereby completing the clamping work of the engine.

[0027] Although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can be modified, or some of the technical features can be replaced by equivalent features, by those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An engine case positioning tool for a chainsaw, comprising a base (1) and a clamping mechanism (2), characterised in that: The clamping mechanism (2) is arranged on the top of the base (1); The clamping mechanism (2) comprises a main hydraulic chamber (201), a first sliding pipe (211), a first spring (212) and a first sliding cylinder (213), the first sliding pipe (211) is arranged on the inner side of the first sliding cylinder (213), the first spring (212) is arranged on the inner side of the first sliding pipe (211), the first spring (212) is used for supporting the first sliding cylinder (213), the outer side of the main hydraulic chamber (201) is provided with a first motor (202), the output end of the first motor (202) penetrates the main hydraulic chamber (201) and is provided with an output shaft (203), the outer side of the output shaft (203) is provided with a gear disc (204), the inner wall of the main hydraulic chamber (201) is provided with a first support (205), the inner side of the first support (205) is provided with a first fixing frame (206), the inner side of the first fixing frame (206) is provided with a plurality of rotating cylinders (216), the inner side of the rotating cylinder (216) is slidably connected with a first limiting sliding rod (207), the outer side of the first limiting sliding rod (207) is provided with a first threaded rod (208), the outer side of the first threaded rod (208) is provided with a first threaded sleeve (209), the first threaded sleeve (209) is in threaded connection with the first threaded rod (208), the outer side of the first threaded sleeve (209) is provided with a rotating groove (215), the outer side of the first threaded sleeve (209) is provided with a first gear (210), the first gear (210) is in meshing connection with the gear disc (204), the outer side of the first threaded rod (208) is provided with the first sliding pipe (211), the inner side of the first sliding pipe (211) is provided with the first spring (212), the outer side of the first spring (212) is slidably connected with the first sliding cylinder (213), the outer side of the first sliding cylinder (213) is slidably connected with a sealing ring (214), the sealing ring (214) is arranged on the inner side of the main hydraulic chamber (201), the outer side of the base (1) is provided with a bottom plate (217), the top of the bottom plate (217) is provided with a second motor (218), the output end of the second motor (218) is provided with a gear cylinder (219), the inner side of the gear cylinder (219) is provided with two second gears (220), the top of the second gear (220) is provided with a second threaded rod (230), the outer side of the second threaded rod (230) is provided with a second limiting sliding rod (223), the outer side of the second limiting sliding rod (223) is slidably connected with a fixed sealing block (222), the second threaded rod (230) is in threaded connection with the second limiting sliding rod (223), the top of one side of the fixed sealing block (222) is located at the bottom of the main hydraulic chamber (201), the top of the second limiting sliding rod (223) penetrates the main hydraulic chamber (201) and is provided with a first leaf spring (224), the top of the other side of the fixed sealing block (222) is provided with a secondary hydraulic chamber (221),The top of the second limiting sliding rod (223) on the other side penetrates through the auxiliary hydraulic chamber (221) and is provided with another first leaf spring (224), the top of the first leaf spring (224) is provided with a plurality of second sliding pipes (225), the inner side of the second sliding pipe (225) is provided with a second spring (226), the outer side of the second sliding pipe (225) is slidably connected with a second sliding cylinder (227), the inner side of the second sliding cylinder (227) is rotatably connected with a rotating shaft (228), the top of the rotating shaft (228) is provided with a second leaf spring (229), and the top of the second leaf spring (229) is provided with an engine (4).

2. An engine case positioning tool for a chainsaw as defined in claim 1, characterized in that: The top of the engine (4) is provided with a top hydraulic device (6), the top of the top hydraulic device (6) is provided with a top plate (5), the outer side of the top plate (5) is provided with a supporting plate (3), the bottom of the supporting plate (3) is arranged on the outer side of the base (1), the bottom outer side of the first sliding cylinder (213) and the second sliding cylinder (227) is provided with a booster ring, the booster ring is a ring-shaped metal ring, and the booster ring is used to increase the pushing surface of the first sliding cylinder (213) and the second sliding cylinder (227) by hydraulic pressure.

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