Engine maintenance tool and method for adjusting engine under maintenance
By designing integrated engine repair tooling, including pitch and connection devices, the slippage and safety hazards during the tightening of connecting rod bolts during engine repair are solved, and efficient and accurate maintenance operations are achieved.
Patent Information
- Application Number
- CN202211151098.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-09-21
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2042-09-21
AI Technical Summary
During the engine maintenance process, the tightening of the connecting rod bolts is prone to slipping or difficult to rely on force, and the maintenance personnel need to stand at a high place to make torque, which poses safety risks, and need to manually observe the horizontal position of the engine plane, and efficiency Low.
An engine maintenance tool is designed, including a base, support device, pitch device, fixture, connection device and control box. Through pitch device and connection device, the connecting rod bolts of the engine are adjusted to a vertical angle, and the fixture and rotation shaft are accurately adjusted. , integrates lifting, flipping and rotation, and uses sensors to automatically adjust the angle and position.
It effectively avoids slippage and safety hazards during tightening, improves maintenance efficiency, and ensures accurate adjustment and safe operation of connecting rod bolts.
Smart Images
Figure CN115464612B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of engine maintenance, and in particular relates to an engine maintenance tool and a method for adjusting an engine under maintenance. Background Art
[0002] At present, the connecting rod bolts are subjected to large alternating impact loads during the operation of the engine and are important components of the engine. The engine can be repaired on a flip stand, but the connecting rod bolts of the engine are tightened and torqued on an inclined plane. Tightening the torque on an inclined plane may cause slippage or difficulty in leveraging. Even if an electric torque tightening wrench is used, partial slippage may occur. The torque of the connecting rod bolts is relatively critical in the engine and needs to be checked one by one. In addition, the position of the cylinder head bolts on the top of the engine is relatively high. When applying torque, the torque wrench will exceed the human force point. There will be safety hazards for maintenance personnel standing at a high place to apply torque. For the current flip stand, manual observation of the horizontal position of the plane on the engine is required during rotation. Summary of the invention
[0003] In view of the above problems, the present invention provides an engine maintenance tool and a method for adjusting an engine under maintenance.
[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: an engine maintenance tool, comprising a base and a supporting device, the supporting device is installed on the base, and also comprises a pitch device, a clamp, a connecting device and a control box; the connecting device is installed above the supporting device; the connecting device comprises a shell and a fixed shaft; the fixed shaft is horizontally installed on the rear side of the upper end of the shell; the pitch device comprises an outer shell and a linear telescopic device 1, the inner part of the outer shell is hollow, and the linear telescopic device 1 is installed inside the outer shell; through holes 1 are provided on both sides of the rear part of the outer shell, and the outer shell is hinged to the fixed shaft of the connecting device through the through holes 1; the linear telescopic device 1 comprises a base 1 and a telescopic rod 1, the base 1 is hinged to the shell of the connecting device, and one end of the telescopic rod is hinged to the front side of the shell of the pitch device; when the linear telescopic device 1 is in a working state, it can drive the shell to flip around the fixed shaft by a certain angle; the clamp is installed on the front side of the shell, and the control box is installed on the rear side of the shell; the clamp can clamp the engine that needs to be repaired, and the linear telescopic device 1 is connected to the control box for communication.
[0005] Preferably, the engine maintenance tool also includes a rotating shaft, a power unit and a transmission device, and the rotating shaft and the transmission device are both installed in the outer shell of the pitch device; the power unit is installed on the side wall of the outer shell; the rotating shaft passes through the outer shell and is connected to the clamp; the power unit is connected to the rotating shaft through the transmission device.
[0006] Preferably, the pitch device also includes a connecting member three, which is installed in the shell, and the front side of one end of the connecting member three is fixedly connected to the front wall of the shell, and the other end is detachably connected to the side wall of the shell; an end of the telescopic rod of the linear telescopic device one is hinged to the middle part of the connecting member three; the connecting device also includes a connecting member one, which is installed in the shell, and one end of the connecting member one is detachably connected to the side wall of the shell, and the front and rear sides of the other end are respectively fixedly connected to the front wall and the rear wall of the shell; the base one of the linear telescopic device one is hinged to the middle part of the connecting member three.
[0007] Preferably, a second through hole is formed on the rear side wall of the upper end of the housing of the connecting device, and the two ends of the fixed shaft are respectively installed in the second through hole.
[0008] Preferably, a cavity is provided inside the supporting device, the shell of the connecting device is communicated with the internal cavity of the supporting device, and a second linear telescopic device is vertically installed in the supporting device; the second linear telescopic device includes a second base and a second telescopic rod, the second base is detachably connected to the base, and the two ends of the telescopic rod are detachably connected to the shell of the connecting device; when the second linear telescopic device is in working state, it can drive the shell to move up and down.
[0009] Preferably, the connecting device also includes a second connecting member, which is installed in the shell, one end of which is detachably connected to the side wall of the shell, and the rear side of the other end is fixedly connected to the rear wall of the shell; the two ends of the telescopic rod of the second linear telescopic device are detachably connected to the middle part of the second connecting member.
[0010] Preferably, the first linear telescopic device and the second linear telescopic device are hydraulic cylinders, electric push rods or air cylinders.
[0011] Preferably, the engine maintenance tool also includes a pitch sensor, an angle sensor and a limit sensor, the pitch sensor is installed on one side of the pitch device housing; the angle sensor and the limit sensor are both installed on the rotating shaft; the pitch sensor, angle sensor and limit sensor are respectively communicated with the control box.
[0012] Preferably, the engine maintenance tool also includes a lift, which is vertically installed in the supporting device, the upper end of the lift is detachably connected to the shell of the connecting device, and the lower end of the lift is detachably connected to the base.
[0013] A method for adjusting an engine under maintenance, using the engine maintenance tool to perform the adjustment, comprises the following steps:
[0014] Step 1: Install the engine to be repaired in the fixture, and start the linear telescopic device 2 by pressing the lifting button in the control box, so as to drive the shell of the connecting device to move up and down, and adjust it to a height suitable for the operator's work, and then turn off the lifting button;
[0015] Step 2: Press the pitch button in the control box to start the linear telescopic device, drive the shell of the pitch device and the device installed on the shell to synchronously flip around the fixed axis at a certain angle, until the connecting rod bolt of the engine to be repaired is adjusted to a vertical angle, and then turn off the pitch button;
[0016] Step 3: When the connecting rod bolts of other parts of the engine need to be repaired, turn on the rotation button to make the power device drive the rotating shaft through the transmission device. The rotating shaft drives the engine to be repaired to rotate to the part to be repaired. The limit sensor on the rotating shaft can realize precise adjustment of the horizontal and vertical positions.
[0017] Step 4: Repeat step 2 to adjust the connecting rod bolts of other parts of the engine that need to be repaired to a vertical angle, and then repeat step 3 until the parts of the engine that need to be repaired are repaired.
[0018] Compared with the prior art, the advantages and positive effects of the present invention are:
[0019] (1) The housing of the pitch device is turned up and down around the fixed axis of the connecting device, so that the connecting rod bolts of the engine are adjusted to a vertical angle, which is convenient for maintenance personnel to repair the connecting rod bolts and avoids slipping and difficulty in gaining leverage when tightening the connecting rod bolts;
[0020] (2) The housing of the connecting device can be moved up and down, so that the engine can be adjusted to a height suitable for maintenance personnel to operate, eliminating the safety hazard of maintenance personnel standing at high places for maintenance;
[0021] (3) The tilting angle of the pitch device housing is suitable for the angle requirements of most engine connecting rod bolts on the market;
[0022] (4) The engine maintenance tooling integrates lifting, flipping and rotation, which is convenient for maintenance personnel to operate and improves maintenance efficiency;
[0023] (5) Angle sensors and limit sensors are installed on the rotating shaft to ensure that the rotating shaft always maintains a 90° rotation, eliminating the need to manually observe the horizontal position of the plane on the engine during rotation;
[0024] (6) A pitch sensor is installed on one side of the shell of the pitch device. The pitch sensor senses the flipping angle of the shell. When the flipping reaches the limit, the pitch sensor sends a signal to the control box to stop the linear telescopic device. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the following is a brief introduction to the drawings required for describing the embodiment:
[0026] Figure 1 A front view of the engine maintenance tool provided in Example 1;
[0027] Figure 2 This is the left side view of the engine maintenance tooling;
[0028] Figure 3 This is a schematic diagram of the engine maintenance tooling;
[0029] Figure 4 This is the internal structure diagram of the rotating shaft in the engine maintenance tooling;
[0030] Figure 5 This is the internal structure diagram of the pitch device in the engine maintenance tooling;
[0031] Figure 6 This is a schematic diagram of the interior of the pitch device in the engine maintenance tooling;
[0032] Figure 7 This is a schematic diagram of the pitch device and connecting device in the engine maintenance tooling.
[0033] Description of reference numerals:
[0034] 1—base, 2—support device;
[0035] 3—connecting device, 13—linear telescopic device 2, 301—connecting piece 1, 302—connecting piece 2, 303—housing, 304—fixed shaft;
[0036] 4—pitch device, 8—linear telescopic device 1, 401—connecting piece 3, 402—housing;
[0037] 5—power device, 6—clamp, 7—rotation axis, 9—pitch sensor, 10—hydraulic device, 11—control box;
[0038] 12—transmission device, 121—worm wheel, 122—worm. DETAILED DESCRIPTION
[0039] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments.
[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.
[0041] Example 1
[0042] The following is combined with Figure 1-Figure 7 The present invention is further described as follows: an engine maintenance tool comprises a base 1 and a supporting device 2, wherein the supporting device 2 is mounted on the base 1. Figure 1-Figure 3 As shown, it also includes a pitch device 4, a fixture 6, a connecting device 3 and a control box 11; the connecting device 3 is installed above the supporting device 2; Figure 5-Figure 6 As shown, the connecting device 3 includes a housing 303 and a fixed shaft 304 ; the fixed shaft 304 is horizontally mounted on the rear side of the upper end of the housing 303 .
[0043] like Figure 5-Figure 6 As shown, the pitch device 4 includes a shell 402 and a linear telescopic device 8. The shell 402 is hollow inside, and the linear telescopic device 8 is installed inside the shell 402; through holes are opened on both sides of the rear part of the shell 402, and one set of through holes is arranged on the outer periphery of the fixed shaft 304 of the connecting device 3.
[0044] The linear telescopic device 8 includes a base 1 and a telescopic rod 1, wherein the base 1 is hinged to the shell 303 of the connecting device 3 , and the telescopic rod 1 is hinged to the shell 402 of the pitch device 4 .
[0045] like Figure 5-Figure 7 As shown, when the linear telescopic device 8 is in working state, it can drive the housing 402 to flip around the fixed axis 304 at a certain angle; the clamp 6 is installed on the front side of the housing 402, and the control box 11 is installed on the rear side of the housing 402.
[0046] The clamp 6 can clamp the engine that needs to be repaired, and the linear telescopic device 8 is communicatively connected with the control box 11.
[0047] like Figure 4 As shown, the engine maintenance tool also includes a rotating shaft 7, a power unit 5 and a transmission device 12, and the rotating shaft 7 and the transmission device 12 are both installed in the outer shell 402 of the pitch device 4; the power unit 5 is installed on the side wall of the outer shell 402; the rotating shaft 7 passes through the outer shell 402 and is detachably connected to the clamp 6; the power unit 5 is connected to the rotating shaft 7 through the transmission device 12.
[0048] In the present invention, the transmission device 12 includes a worm wheel 121 and a worm 122. The worm wheel 121 is installed on the rotating shaft 7 through a key connection, and the worm wheel 121 is meshed with the worm 122 (the same as the worm gear mechanism in the prior art); the transmission device 12 also includes a driving gear and a driven gear, the driving gear and the driven gear are meshed, the driving gear is installed on the end of the output shaft of the power device 5 through a key connection, and the driven gear is installed on the end of the worm 122 close to the power device 5 through a key connection.
[0049] In the present invention, when the power device 5 is working, it drives the driving gear, the driven gear, the worm 122, the worm wheel 121 and the rotating shaft 7 to rotate in sequence, and the rotating shaft 7 drives the engine to be repaired clamped by the clamp 6 to rotate.
[0050] like Figure 5-Figure 6 As shown, the pitch device 4 also includes a connecting member 3 401, which is installed in the shell 402, and the front side of one end of the connecting member 3 401 is fixedly connected to the front wall of the shell 402, and the other end is detachably connected to the side wall of the shell 402; the connecting device 3 also includes a connecting member 1 301, which is installed in the shell 303, and the front and rear sides of the other end are respectively fixedly connected to the front wall and the rear wall of the shell 303.
[0051] like Figure 5-Figure 6 As shown, the base 1 of the linear telescopic device 8 is hinged to the middle part of the connecting member 301, and the telescopic rod 1 of the linear telescopic device 8 is hinged to the middle part of the connecting member 3 401.
[0052] like Figure 7 As shown, the rear side wall of the upper end of the shell 303 of the connecting device 3 is provided with a second through hole, and both ends of the fixed shaft 304 are respectively installed in the second through hole.
[0053] like Figure 5-Figure 6 As shown, a cavity is opened inside the support device 2, the shell 303 of the connecting device 3 is communicated with the internal cavity of the support device 2, and a linear telescopic device 2 13 is vertically installed in the support device 2; the linear telescopic device 2 13 includes a base 2 and a telescopic rod 2, the base 2 is detachably connected to the base 1, and the telescopic rod 2 is detachably connected to the shell 303; when the linear telescopic device 2 13 is in working state, it can drive the shell 303 to move up and down.
[0054] like Figure 5-Figure 6 As shown, the connecting device 3 also includes a second connecting member 302, which is installed in the shell 303. One end of the second connecting member 302 is detachably connected to the side wall of the shell 303, and the rear side of the other end is fixedly connected to the rear wall of the shell 303; the second telescopic rod of the second linear telescopic device 13 is detachably connected to the second connecting member 302.
[0055] The linear telescopic device 1 8 and the linear telescopic device 2 13 are hydraulic cylinders.
[0056] like Figure 1-Figure 2 As shown, the engine maintenance tooling also includes a pitch sensor 9, an angle sensor and a limit sensor. The pitch sensor 9 is installed on one side of the pitch device 4 housing 402; the angle sensor and the limit sensor are both installed on the rotating shaft 7; the angle sensor and the limit sensor are communicatively connected to the control box 11.
[0057] In the present invention, the engine maintenance tool also includes a hydraulic device 10, which is installed on the base 1. The hydraulic device 10 includes an oil tank and an oil pump. The oil tank is installed on the base 1. The oil pump is connected to the oil tank through a pipeline 1. The oil pump includes two pipelines 2, and the two pipelines 2 are respectively connected to the linear telescopic device 1 8 and the linear telescopic device 2 13.
[0058] In the present invention, the housing 402 of the pitch device 4 can be flipped ±30° around the fixed axis 304 of the connecting device 3. After the pitch sensor 9 senses that the housing 402 of the pitch device 4 is flipped around the fixed axis 304 of the connecting device 3 to the limit position, the pitch sensor 9 feeds back a signal to the control box 11, and the control box 11 controls the oil pump of the hydraulic device 10 to stop working.
[0059] In the present invention, the operation of the power device 5 can be controlled by an angle sensor and a limit sensor to ensure that the rotating shaft 7 always rotates at 90°, and the machine can be stopped to achieve precise horizontal and vertical positions.
[0060] In the present invention, the working principle of the linear telescopic device 1 8 and the linear telescopic device 2 13 is as follows: the oil pump of the hydraulic device 10 is controlled by the button on the control box 11 to pump oil to the linear telescopic device 1 8 and the linear telescopic device 2 13 respectively, so that the telescopic rod of the linear telescopic device 1 8 and the linear telescopic device 2 13 are respectively operated (the same as the principle of the hydraulic cylinder in the prior art), the linear telescopic device 1 8 drives the outer shell 402 of the pitch device 4 to flip around the fixed axis 304 of the connecting device 3, and the linear telescopic device 2 13 drives the shell 303 of the connecting device 3 to move up and down.
[0061] A method for adjusting an engine under maintenance comprises the following steps:
[0062] Step 1: Install the engine to be repaired in the fixture 6, open the control box 11, and start the operation of the linear telescopic device 2 13 by pressing the lifting button, so as to drive the housing 303 of the connecting device 3 to move up and down, and adjust it to a height suitable for the operator's work, and then close the lifting button;
[0063] Step 2: Turn on the pitch button to start the linear telescopic device 8 to operate, driving the housing 402 of the pitch device 4 and the device installed on the housing 402 to turn up and down around the fixed axis 304 synchronously until the connecting rod bolt of the engine to be repaired is adjusted to a vertical angle, and then turn off the pitch button;
[0064] Step 3: When the connecting rod bolts of other parts of the engine need to be repaired, turn on the rotation button to make the power device 5 drive the rotating shaft 7 through the transmission device 12. The rotating shaft 7 drives the engine to be repaired to rotate to the part to be repaired. The limit sensor on the rotating shaft 7 can realize the precise adjustment of the horizontal and vertical positions;
[0065] Step 4: Repeat step 2 to adjust the connecting rod bolts of other parts of the engine that need to be repaired to a vertical angle, and then repeat step 3 until the parts of the engine that need to be repaired are repaired.
[0066] Example 2
[0067] The difference between this embodiment and the embodiment 1 is that the linear telescopic device 1 8 and the linear telescopic device 2 13 are electric push rods, and the linear telescopic device 1 8 and the linear device 2 13 are respectively connected to external power supplies.
[0068] Example 3
[0069] The difference between this embodiment and the first embodiment is that the linear telescopic device 1 8 and the linear telescopic device 2 13 are cylinders.
[0070] Example 4
[0071] The difference between this embodiment and embodiment 1 is that the engine maintenance tool also includes a lift, which is vertically installed in the cavity of the support device 2, the upper end of the lift is detachably connected to the shell 303 of the connecting device 3, and the lower end of the lift is detachably connected to the base 1.
[0072] In step 1, a lift is used to drive the housing 303 of the connecting device 3 to move up and down.
[0073] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. An engine maintenance tool, comprising a base (1) and a supporting device (2), wherein the supporting device (2) is mounted on the base (1), and is characterized in that: It also includes a pitch device (4), a clamp (6), a connecting device (3) and a control box (11); the connecting device (3) is installed above the supporting device (2); The connecting device (3) comprises a housing (303) and a fixed shaft (304); the fixed shaft (304) is horizontally mounted on the rear side of the upper end of the housing (303); The pitch device (4) comprises a shell (402) and a linear telescopic device (8); the shell (402) is hollow inside, and the linear telescopic device (8) is installed inside the shell (402); through holes (1) are provided on both sides of the rear portion of the shell (402), and the shell (402) is hinged to the fixed shaft (304) of the connecting device (3) through the through holes (1); The linear telescopic device (8) comprises a base (1) and a telescopic rod (1), wherein the base (1) is hinged to the housing (303) of the connecting device (3), and an end of the telescopic rod (1) is hinged to the front side of the housing (402) of the pitch device (4); When the linear telescopic device (8) is in working state, it can drive the housing (402) to flip around the fixed axis (304) to a certain angle; the clamp (6) is installed on the front side of the housing (402), and the control box (11) is installed on the rear side of the housing (402); The clamp (6) is capable of clamping the engine that needs to be repaired, and the linear telescopic device (8) is communicatively connected with the control box (11); The engine maintenance tool also includes a rotating shaft (7), a power device (5) and a transmission device (12), wherein the rotating shaft (7) and the transmission device (12) are both installed in a housing (402) of the pitch device (4); the power device (5) is installed on a side wall of the housing (402); The rotating shaft (7) passes through the housing (402) and is detachably connected to the clamp (6); the power device (5) is transmission-connected to the rotating shaft (7) via the transmission device (12); The pitch device (4) further comprises a third connecting member (401), wherein the third connecting member (401) is installed in the housing (402), wherein the front side of one end of the third connecting member (401) is fixedly connected to the front wall of the housing (402), and the other end is detachably connected to the side wall of the housing (402); an end of the telescopic rod of the first linear telescopic device (8) is hinged to the middle of the third connecting member (401); The connecting device (3) further comprises a connecting member 1 (301), wherein the connecting member 1 (301) is installed in the housing (303), wherein one end of the connecting member 1 (301) is detachably connected to the side wall of the housing (303), and the front and rear sides of the other end are respectively fixedly connected to the front wall and rear wall of the housing (303); the base 1 of the linear telescopic device 1 (8) is hinged to the middle part of the connecting member 3 (401); The two ends of the rear side wall of the upper end of the shell (303) of the connecting device (3) are both provided with through holes 2, and the two ends of the fixed shaft (304) are respectively installed in the through holes 2; The engine maintenance tool further comprises a pitch sensor (9), an angle sensor and a limit sensor, wherein the pitch sensor (9) is mounted on one side of a housing (402) of the pitch device (4); The angle sensor and the limit sensor are both mounted on the rotating shaft (7); the pitch sensor (9), the angle sensor and the limit sensor are respectively connected to the control box (11) for communication.
2. The engine maintenance tool according to claim 1, characterized in that: The support device (2) has a cavity inside, the housing (303) of the connection device (3) is in communication with the cavity inside the support device (2), and a second linear telescopic device (13) is vertically installed inside the support device (2); The second linear telescopic device (13) comprises a second base and a second telescopic rod, wherein the second base is detachably connected to the base (1), and the two ends of the telescopic rod are detachably connected to the housing (303) of the connecting device (3); When the second linear telescopic device (13) is in working state, it can drive the shell (303) to move up and down.
3. The engine maintenance tool according to claim 2, characterized in that: The connecting device (3) further comprises a second connecting member (302), wherein the second connecting member (302) is installed in the housing (303), one end of the second connecting member (302) is detachably connected to the side wall of the housing (303), and the rear side of the other end is fixedly connected to the rear wall of the housing (303); The two ends of the telescopic rod of the second linear telescopic device (13) are detachably connected to the middle of the second connecting piece (302).
4. The engine maintenance tool according to claim 3, characterized in that: The linear telescopic device 1 (8) and the linear telescopic device 2 (13) are hydraulic cylinders, electric push rods or air cylinders.
5. The engine maintenance tool according to claim 1, characterized in that: The engine maintenance tool also includes a lift, which is vertically installed in the support device (2), the upper end of the lift is detachably connected to the shell (303) of the connection device (3), and the lower end of the lift is detachably connected to the base (1).
6. A method for adjusting an engine under maintenance, characterized in that: The adjustment using the engine maintenance tool as claimed in claim 2 comprises the following steps: Step 1: Install the engine to be repaired in the fixture (6), and start the operation of the second linear telescopic device (13) by pressing the lifting button in the control box (11), so as to drive the housing (303) of the connecting device (3) to move up and down, and adjust it to a height suitable for the operator's work, and then turn off the lifting button; Step 2: By pressing the pitch button in the control box (11), the linear telescopic device (8) starts to operate, driving the housing (402) of the pitch device (4) and the device installed on the housing (402) to synchronously flip around the fixed axis (304) to a certain angle until the connecting rod bolt of the engine to be repaired is adjusted to a vertical angle, and the pitch button is turned off; Step 3: When the connecting rod bolts of other parts of the engine need to be repaired, the rotation button is turned on, so that the power device (5) drives the rotating shaft (7) through the transmission device (12), and the rotating shaft (7) drives the engine to be repaired to rotate to the part to be repaired, and the limit sensor on the rotating shaft (7) can realize the precise adjustment of the horizontal and vertical positions; Step 4: Repeat step 2 to adjust the connecting rod bolts of other parts of the engine that need to be repaired to a vertical angle, and then repeat step 3 until the parts of the engine that need to be repaired are repaired.
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