Installation device and method for diesel engine starter motor for oil drilling

Abstract

This invention discloses an installation device and method for a diesel engine starter motor used in oil drilling, comprising: a left support slot located on the left side, having an upward-opening U-shaped groove extending horizontally along the front-rear direction; a right support slot located on the right side, having an upward-opening U-shaped groove extending horizontally along the front-rear direction, with both ends connected to the left support slot as a whole by transverse long fixing rods; a left support, which is an upward-opening arc shape, with its bottom supported on the left support slot and capable of front-rear translation; a right support, which is an upward-opening arc shape, with its bottom supported on the right support slot and capable of following the left support in front-rear translation; two guide rods, parallel to each other and connected between the upper ends of the left and right supports respectively; and a transverse moving support, which is an upward-opening arc shape, with the left and right sides connected as a whole, and its upper end suspended from the guide rods through a guide hole. This device and method can greatly reduce labor intensity, improve operational safety, and shorten operation time.

Description

Technical Field

[0001] This invention relates to a diesel engine for oil drilling, and more particularly to a diesel engine starter motor installation device for oil drilling, belonging to the field of well site auxiliary equipment technology. Background Technology

[0002] The advantages of diesel engines are high torque and good economic performance. Each working cycle goes through four strokes: intake, compression, power, and exhaust. Currently, in oil drilling operations, the power of drilling rigs and generators is mostly provided by diesel engines. Drilling diesel engines are heavy equipment and play a very important role in oil drilling operations.

[0003] For a diesel engine to transition from a stationary state to a working state, an external force must first be applied to rotate the engine crankshaft, causing the pistons to reciprocate. The combustible mixture in the cylinders burns and expands, doing work and pushing the pistons downwards, thus rotating the crankshaft. Only then can the diesel engine operate automatically, and the working cycle can proceed automatically. Therefore, the entire process from the crankshaft starting to rotate under external force to the engine automatically idling is called engine starting.

[0004] Currently, diesel engines are started by a starter motor, whose output pinion meshes with the flywheel gear at the end of the crankshaft. When the starter motor malfunctions or requires maintenance, it needs to be removed from the diesel engine for inspection and repair, and then reinstalled after repair.

[0005] When installing the starter motor, it is necessary to suspend the starter motor and move it towards the end where the flywheel sprocket is located until the fixed end of the starter motor contacts the end face of the motor mounting bracket. Then rotate the starter motor to align the mounting hole of the starter motor with the hole of the motor mounting bracket, and then insert the bolt.

[0006] Due to the harsh environment of the drilling team's field operations, the installation and removal of the diesel engine starter motor are currently being carried out manually in conjunction with a crane at the production site. This requires waiting for the crane to arrive, and the challenging environment makes crane access and lifting difficult. It takes four people three hours to complete the task. This increases maintenance costs, is time-consuming and labor-intensive, places high demands on worker skills, and poses certain safety hazards during the operation.

[0007] If the diesel engine stops operating, the drilling system will lose power, and if it cannot be started for a long time, it will create risks of complex downhole conditions. Summary of the Invention

[0008] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, and such simplifications or omissions should not be construed as limiting the scope of the invention.

[0009] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0010] The primary objective of this invention is to overcome the problems existing in the prior art and provide a diesel engine starter motor installation device for oil drilling that eliminates the need for crane assistance, avoids operation of the starter motor in a suspended state, greatly reduces the labor intensity of operators, improves operational safety, and significantly shortens operation time.

[0011] To solve the above technical problems, the present invention provides a diesel engine starter motor mounting device for oil drilling, comprising:

[0012] The left support groove, located on the left side, has an upward-opening U-shaped groove that extends along a horizontal line in the front-rear direction;

[0013] The right support groove is located on the right side and has an upward-opening U-shaped groove that extends along a horizontal line in the front-back direction. The front and rear ends are respectively connected to the left support groove as a whole by a horizontal long fixing rod.

[0014] The left support is an upward-opening arc shape, with its bottom supported on the left support groove and capable of moving back and forth.

[0015] The right support is an arc shape with an upward opening and its bottom is supported on the right support groove and can move back and forth with the left support;

[0016] Two guide rods, parallel to each other and respectively connected between the upper ends of the left and right supports;

[0017] The lateral movable support is an upward-opening arc shape, and the left and right sides are fixed together as a whole. The upper end is suspended on the guide rod through the guide hole.

[0018] Furthermore, the front and rear ends of the left and right support slots are respectively supported on the diesel engine base by adjustable support legs.

[0019] Furthermore, the arc radius of the left support, right support and lateral moving support are all matched with the radius of the diesel engine starter motor, and the two ends of the diesel engine starter motor body rest on the two lateral moving supports.

[0020] Furthermore, the front and rear sides of the lower part of the two lateral moving supports are connected to each other as a whole by short connecting rods, and the two short connecting rods and the guide rod above are distributed in an isosceles trapezoidal shape.

[0021] Furthermore, the bottom sides of the left support are supported on the top of the left support groove on both sides. The bottom center of the left support has a downward protruding lower part of the left support. The left and right sides of the lower part of the left support are respectively attached to the side wall of the groove opening of the left support groove. The center of the lower part of the left support has a left support screw hole. The left screw is installed in the groove opening of the left support groove and is screwed to the left support screw hole in the middle.

[0022] Furthermore, the rear end of the left screw is rotatably supported in the rear stop block of the left support groove, and the rear stop block of the left support groove is fixed to the rear end of the left support groove by screws.

[0023] The front end of the left screw is rotatably supported in the front stop block of the left support groove. The front stop block of the left support groove is fixed to the front port of the left support groove by screws. The front end of the left screw is fixed with a front and rear adjustment handwheel.

[0024] Furthermore, front support leg adjusting rods are fixed below the front ends of the left and right support slots, respectively. The two front support leg adjusting rods are respectively screwed with front support leg lower rods, and the lower ends of the two front support leg lower rods are respectively supported on the base plate of the diesel engine base by front support leg pads.

[0025] The left and right support slots are respectively fixed with rear support leg adjusting rods at the lower front end. The lower ends of the two rear support leg adjusting rods are respectively screwed with rear support leg lower rods. The lower ends of the two rear support leg lower rods are respectively hinged with rear support leg fixing clips. The two rear support leg fixing clips are respectively fixed on the inclined wall slots of the diesel engine base.

[0026] Furthermore, the lower middle part of the opposite end face of the two transverse moving supports is provided with moving support drive rods that first extend towards each other and then bend downwards. The lower end of the two moving support drive rods is provided with moving support drive nuts. Both moving support drive nuts are screwed onto the threaded section of the worm gear shaft. When the worm gear shaft rotates, the two moving support drive nuts move the two transverse moving supports in the left and right directions.

[0027] Furthermore, the left end of the worm gear shaft is driven by the worm gear box assembly, and the right end of the worm gear shaft is supported on the lower end of the worm gear shaft fixing frame. The worm gear shaft fixing frame is triangular and its upper two ends are fixedly connected to the right support ear plate by bolts. The right support ear plate is located on the front and rear sides of the bottom left of the right support.

[0028] Furthermore, the worm gear box assembly has a worm wheel and a worm shaft meshing with each other in the box body. The box body is close to the inner end face of the left support and is fixedly connected to the lower part of the left support. The worm wheel is fixed on the worm wheel shaft. The front end of the worm wheel shaft extends out of the box body and is equipped with a worm handwheel.

[0029] Furthermore, the bottom plane of the right support is provided with an upwardly recessed and through-type long groove for the right support. The two side walls of the middle part of the long groove for the right support are respectively provided with downwardly extending downward limiting plates. The two downward limiting plates are respectively inserted into the groove opening of the right support groove so that the right support is positioned in the left and right directions.

[0030] Furthermore, the inner arc surface of the right support is provided with a downwardly recessed right support concave arc groove, in which a sector gear is embedded, with the tooth surface of the sector gear facing downward; the bottom of the right support concave arc groove communicates with the right support long groove, in which a rack meshes with the sector gear is accommodated, and the left and right sides of the rack are engaged with the two sides of the right support long groove.

[0031] Furthermore, the upper concave surface of the sector gear is provided with a sector gear limiting plate that is T-shaped and integrally connected with the concave surface. The bottom sides of the sector gear limiting plate are attached to the two sides of the concave groove of the right support and are matched with each other.

[0032] Furthermore, the right side wall of the sector gear is provided with a sector gear concave arc groove, and both the sector gear concave arc groove and the sector gear limiting plate are coaxial with the sector gear; the inner end of the limiting screw passes through the small hole on the right side wall of the right support and is embedded in the sector gear concave arc groove.

[0033] Furthermore, the bottom of the rack is provided with a guide block integrated therewith, and the left and right sides of the guide block extend downward to form a downward-opening guide groove, in which a rack position adjustment rod for controlling the raising and lowering of the rack is embedded.

[0034] The top of the rack position adjusting rod is a flat surface, and the bottom of the rack position adjusting rod is provided with two sets of adjusting rod grooves and downward protruding adjusting rod protrusions along the length direction. The two adjusting rod grooves are respectively transitioned to the corresponding adjusting rod protrusions through inclined surfaces.

[0035] The right support groove is provided with an axially positioned and rotatable right screw rod. Two movable screw blocks are screwed onto the right screw rod. The left and right sides of the two movable screw blocks are respectively fixedly connected to the guide block above through connecting blocks. The tops of the two movable screw blocks abut against the bottom of the adjusting rod groove or the adjusting rod protrusion.

[0036] Furthermore, the rear end of the right screw is rotatably supported in the rear stop block of the support groove, and the rear stop block of the support groove is fixed to the rear port of the right support groove; the front end of the right screw is rotatably supported in the front stop block of the support groove, and the front stop block of the support groove is fixed to the front port of the right support groove; and a right handle is fixed to the front end of the right screw.

[0037] Furthermore, the front end of the rack position adjusting rod extends from the notch of the front stop block of the support groove and is provided with an adjusting rod hook.

[0038] Furthermore, buckles are screwed onto the two sector sides of the sector gear, and the middle part of the binding strap passes around the circumference of the diesel engine starter motor and both ends are fixed to the buckles.

[0039] Another objective of this invention is to overcome the problems existing in the prior art and provide a method for installing a diesel engine starter motor for oil drilling, which eliminates the need for crane assistance, avoids operating the starter motor in a suspended state, greatly reduces the labor intensity of operators, improves the safety of operations, and significantly shortens the operation time.

[0040] To solve the above technical problems, the present invention provides a method for installing a diesel engine starter motor for oil drilling, comprising the following steps in sequence:

[0041] S1. Fix the diesel engine starter motor mounting device for oil drilling to the side of the diesel engine base, and adjust the left and right support slots to be horizontal and the height to match the height of the motor fixing support frame.

[0042] S2. Pull the rack position adjusting rod forward so that the rack and sector gear are in a non-meshing state;

[0043] S3. Then, rotate the forward and backward adjusting handwheel to drive the left screw to rotate forward, so that the left support moves forward along the left support groove; at the same time, it drives the right support to move forward synchronously along the right support groove.

[0044] S4. Lift the diesel engine starter motor and place it on the lateral moving support. Secure the right end of the starter motor with a cable tie, and fix both ends of the cable tie to the buckles at both ends of the sector gear.

[0045] S5. Reverse the front and rear adjustment handwheel. By rotating the left screw in the opposite direction, the left and right supports will move backward synchronously, so that the diesel engine starter motor gradually approaches the diesel engine body until the starter gear of the starter motor is aligned with the hole on the diesel engine motor mounting bracket.

[0046] S6. Rotate the worm handwheel on the worm shaft in the forward direction to move the lateral moving support to the right. The diesel engine starter motor also moves to the right, so that the motor pinion passes through the motor seat hole until the flange of the starter motor contacts the flange of the motor fixed support. At this time, the motor pinion meshes with the flywheel gear of the diesel engine.

[0047] S7. If the mounting holes on the starter motor flange are aligned with the mounting holes on the motor mounting bracket flange, then directly insert bolts for fixing.

[0048] If the mounting holes on the starter motor flange are not aligned with the mounting holes on the motor mounting bracket flange, proceed to the next step.

[0049] S8. Push the rack position adjusting rod backward so that the protrusion of the adjusting rod engages with the top of the two moving screw blocks. At this time, the rack position adjusting rod rises to the high position, so that the rack rises and meshes with the sector gear.

[0050] S9. Turn the right handle to rotate the right screw, which will cause the rack and guide block above to move back and forth. The sector gear will swing at a certain angle, causing the diesel engine starter motor to rotate within a certain range until the mounting hole on the starter motor flange is aligned with the mounting hole on the motor mounting bracket flange. Then, insert bolts to fix it.

[0051] Compared with the prior art, the present invention has achieved the following beneficial effects: it solves the problem of needing a crane and manpower to install and dismantle the diesel engine starter motor at the production site, and shortens the installation time to less than half an hour, greatly reducing the risk of complex underground conditions.

[0052] Existing technology in production sites involves manual labor and multiple operators for the installation and removal of starter motors, which is time-consuming, labor-intensive, and prone to accidents such as motor drops and injuries if not handled carefully. This invention enables rapid installation and removal of diesel engine starter motors, saving manpower and resources, and is easy and safe to operate. Attached Figure Description

[0053] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The drawings are provided for reference and illustration only and are not intended to limit the present invention. Wherein:

[0054] Figure 1 The three-dimensional view of the diesel engine starter motor mounting device for oil drilling of the present invention Figure 1 ;

[0055] Figure 2 The three-dimensional view of the diesel engine starter motor mounting device for oil drilling of the present invention Figure 2 ;

[0056] Figure 3 This is a front view of the diesel engine starter motor mounting device for oil drilling according to the present invention;

[0057] Figure 4 for Figure 3 A sectional view along the middle AA;

[0058] Figure 5 for Figure 3 Top view;

[0059] Figure 6 for Figure 5 A sectional view along the middle edge BB;

[0060] Figure 7 for Figure 5 A sectional view along the center CC;

[0061] Figure 8 for Figure 5 A sectional view along the middle DD;

[0062] Figure 9 This is a perspective view of the upper mechanism of the present invention after removing the right-side support;

[0063] Figure 10 This is a perspective view of the right-side support in this invention;

[0064] Figure 11 This is a perspective view of the lateral movable support in this invention;

[0065] Figure 12 This is a perspective view of the sector gear drive mechanism in this invention;

[0066] In the diagram: 1. Lower rod of front support leg; 2. Adjusting rod of front support leg; 3. Front and rear adjusting handwheel; 4. Handwheel fixing nut; 5. Left side support; 5a. Ear plate of left side support; 6. Short connecting rod; 7. Lateral moving support; 7a. Moving support drive rod; 8. Guide rod; 9. Right side support; 9a. Concave groove of right side support; 9b. Ear plate of right side support; 9c. Long groove of right side support; 9d. Drooping limit plate; 10. Limiting screw; 11. Lateral rod fixing seat; 12. Lateral long fixing rod; 13. Worm gear shaft; 14. Rear support leg fixing clip; 15. Lower rod of rear support leg; 16. Housing; 17. Adjusting rod of rear support leg; 18. Left side support groove; 19. Housing bearing end cover; 20. Bearing; 21. Fixing screw; 22. Worm gear; 23. Oil filler plug; 24. Positioning sleeve; 25. Rolling bearing fixing seat; 26. 27. Worm gear bearing through-hole cover; 28. Worm gear shaft fixing bracket; 29. ​​Sector gear; 20. Sector gear concave arc groove; 21. Sector gear limiting plate; 22. Snap ring; 33. Rack; 34. Rack position adjusting rod; 35. Adjusting rod protrusion; 36. Adjusting rod groove; 37. Adjusting rod hook; 38. Guide block; 39. Right side screw; 30. Moving screw block; 31. Connecting block; 32. 35. Bearing cover fixing screw; 36. Worm shaft; 37. Key; 38. Worm shaft bearing through hole cover; 39. Worm handwheel; 40. Support groove front stop; 41. Front fixing bolt of the housing; 42. Rear fixing bolt of the housing; 43. Left screw; 44. Handle extension rod; 45. Handle fixing nut; 46. Right handle; 47. Key; 48. Front support leg pad; 49. Right support groove. Detailed Implementation

[0067] In the following description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not mean that the device must have a specific orientation.

[0068] To make the technical means, creative features, objectives, and effects of this invention easier to understand, the invention is further described below with reference to specific illustrations. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them.

[0069] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0070] like Figures 1 to 12 As shown, the diesel engine starter motor installation and disassembly device of the present invention consists of support legs, a left support seat assembly, a right support seat assembly, a transverse support seat assembly, a worm gear box assembly, and connecting parts.

[0071] The support legs include components such as the front support leg lower rod 1, the front support leg adjusting rod 2, the rear support leg fixing clip 14, the rear support leg lower rod 15, and the rear support leg adjusting rod 17. The lower end of the front support leg adjusting rod 2 is externally threaded into the upper end of the front support leg lower rod 1, and the lower end of the rear support leg adjusting rod 17 is externally threaded into the upper end of the rear support leg lower rod 15. Both can be height-adjusted within a certain range to ensure that requirements are met even when the starter motor installation position changes slightly.

[0072] The left support assembly includes a front and rear adjusting handwheel 3, a handwheel fixing nut 4, a left support 5, a left support groove 18, a left support groove rear stop block 34, a support groove front stop block 40, and a left screw 43. The top of the left front support leg adjusting rod 2 is fixedly connected to the bottom front end of the left support groove 18 via a flange, and the top of the left rear support leg adjusting rod 17 is fixedly connected to the bottom rear end of the left support groove 18 via a flange, keeping the left support groove 18 horizontal. The groove opening of the left support groove 18 faces upward and extends along its entire length. The left support 5 is supported above the left support groove 18.

[0073] The bottom sides of the left support 5 are supported on the top of the left support groove 18. The bottom center of the left support 5 has a downward protruding left support lower protrusion. The left and right sides of the left support lower protrusion are respectively attached to the side wall of the groove of the left support groove 18. The center of the left support lower protrusion has a left support screw hole. The left screw 43 is installed in the groove of the left support groove 18 and is screwed to the left support screw hole in the middle.

[0074] The rear end of the left screw 43 is rotatably supported in the rear stop block 34 of the left support groove, which is fixed to the rear port of the left support groove 18 by screws. The front end of the left screw 43 is rotatably supported in the front stop block 40 of the left support groove, which is fixed to the front port of the left support groove 18 by screws, so that the left screw 43 can only rotate and cannot move axially.

[0075] The front end of the left screw 43 is fixed with a front-to-back adjustment handwheel 3 by a handwheel fixing nut 4. Rotating the left screw 43 by the front-to-back adjustment handwheel 3 will drive the left support 5 to move back and forth along the left support groove 18.

[0076] The two ends of the transverse long fixing rod 12 are respectively inserted into the port of the transverse rod fixing seat 11. The flange of the transverse rod fixing seat 11 is respectively fixed to the inner walls of the left support groove 18 and the right support groove 49. The two transverse long fixing rods 12 connect the left support groove 18 and the right support groove 49 into a rigid whole.

[0077] When the left support 5 moves back and forth along the left support groove 18, it drives the right support 9 to move back and forth synchronously along the right support groove 49. The main bodies of both the left support 5 and the right support 9 are crescent-shaped with their openings facing upwards. The two upper ends of the left support 5 are connected to the two upper ends of the right support 9 through guide rods 8, respectively.

[0078] The transverse support assembly includes components such as a short connecting rod 6, a transverse moving support 7, a guide rod 8, a transverse rod fixing seat 11, and a transverse long fixing rod 12.

[0079] There are two lateral moving supports 7, one on the left and one on the right. The two lateral moving supports 7 are also crescent-shaped with their openings facing upwards. The radius of the crescent shape matches the outer diameter of the motor to support the motor. The two upper ends of the lateral moving supports 7 are respectively provided with through holes. The two guide rods 8 pass through the through holes at the upper ends of the lateral moving supports 7. The lower ends of the two lateral moving supports 7 facing each other are connected to each other on the front and rear sides by short connecting rods 6 to form a rigid whole, so that the two lateral moving supports 7 can only move left and right synchronously along the two guide rods 8.

[0080] The lower middle part of the opposite end face of the two transverse moving supports 7 is provided with moving support drive rods 7a that first extend towards each other and then bend downward. The lower end of the two moving support drive rods 7a is provided with moving support drive nuts. Both moving support drive nuts are screwed onto the threaded section of the worm gear shaft 13. The two moving support drive nuts can be connected as one piece to ensure that when the worm gear shaft 13 rotates, the two moving support drive nuts carry the transverse moving supports 7 to move in the left and right directions.

[0081] The bottom left side of the right support 9 is provided with right support ear plates 9b extending forward and backward respectively. The worm gear shaft fixing bracket 27 is triangular. The upper two ends of the worm gear shaft fixing bracket 27 are fixedly connected to the right support ear plates 9b by bolts. The right end of the worm gear shaft 13 is supported on the lower end of the worm gear shaft fixing bracket 27.

[0082] The worm gear housing assembly includes a housing 16, a worm gear shaft 13, a housing bearing end cover 19, a bearing 20, a fixing screw 21, a worm gear 22, a filler plug 23, a positioning sleeve 24, a rolling bearing mounting seat 25, a worm gear bearing through-hole cover 26, a worm gear shaft fixing bracket 27, a bearing cover fixing screw 35, a worm shaft 36, a key 37, a worm shaft bearing through-hole cover 38, a worm handwheel 39, a front fixing bolt 41, and a rear fixing bolt 42, among other components.

[0083] The enclosure 16 is located near the inner end face of the left support 5 and is fixed below the left support 5. There are several possible fixing methods, such as: a left support ear plate 5a extending forward is welded to the bottom front side of the left support 5, a left support ear plate 5a extending backward is welded to the bottom rear side of the left support 5, and enclosure ear plates are also welded to the front and rear sides of the top of the enclosure 16. After the through holes on the enclosure ear plates are aligned with the through holes on the corresponding left support ear plates 5a, the front fixing bolt 41 and the rear fixing bolt 42 are inserted to fix the enclosure 16.

[0084] The worm gear 22 and the worm shaft 36 are installed inside the housing 16. The worm gear shaft 13 passes through the upper part of the housing 16. The left end of the worm gear shaft 13 is supported in the bearing hole on the left side wall of the housing 16 by the bearing 20. The housing bearing end cover 19 is fixed to the outer port of the bearing hole on the left side wall of the housing by the fixing screw 21 to close it.

[0085] The worm gear 22 is mounted on the portion of the worm gear shaft 13 located in the housing 16 via a key 37. A filler plug 23 is provided on the top of the housing 16. The left side of the worm gear 22 rests against a shoulder, and the right side of the worm gear 22 rests against a positioning sleeve 24. The right end of the positioning sleeve 24 abuts against the inner ring of the right-side bearing. The outer ring of the right-side bearing is fixed in a rolling bearing mounting seat 25, which is fixed to the right side wall of the housing 16 by screws. The right end of the rolling bearing mounting seat 25 is covered by a worm gear bearing through-hole cover 26. The worm gear shaft 13 passes through the central hole of the worm gear bearing through-hole cover 26 and is sealed to the outside.

[0086] The worm shaft 36 is located below the worm wheel 22, and their axes are perpendicular to each other. The worm shaft 36 meshes with the worm wheel 22 on the worm wheel shaft 13 to form a worm gear drive. The two ends of the worm shaft 36 are supported by bearings on the front and rear side walls of the housing 16. The front end of the worm shaft 36 extends from the front side wall of the housing 16 and is equipped with a worm handwheel 39. By rotating the worm shaft 36 through the worm handwheel 39, the worm wheel 22 is slowly rotated. The worm wheel 22 drives the worm wheel shaft 13 to slowly rotate. The worm wheel shaft 13 drives the moving support drive nut to move horizontally in the left and right direction, so that the transverse moving support 7 moves horizontally in the left and right directions synchronously along the two guide rods 8.

[0087] The right support assembly includes components such as the right support groove rear stop block 34, the right support groove front stop block 40, the sector gear 28, the rack 29, the rack position adjustment rod 30, the guide block 31, the right screw 32, the moving screw block 33, the limit screw 10, the right support 9, the right support groove 49, the handle extension rod 44, the handle fixing nut 45, the key 47, and the right handle 46.

[0088] The top of the right front support leg adjusting rod 2 is fixedly connected to the bottom front end of the right support groove 49 via a flange, and the top of the right rear support leg adjusting rod 17 is fixedly connected to the bottom rear end of the right support groove 49 via a flange, keeping the right support groove 49 horizontal. The opening of the right support groove 49 faces upward and extends along its entire length. A right support 9 is supported above the right support groove 49.

[0089] The bottom plane of the right support 9 is supported on the top of both sides of the right support groove 49. The bottom plane of the right support 9 is provided with an upwardly recessed and front-to-back through right support long groove 9c. The middle two side walls of the right support long groove 9c are respectively provided with downwardly extending drooping limiting plates 9d. The two drooping limiting plates 9d are respectively inserted into the groove of the right support groove 49 so that the right support 9 is positioned in the left and right directions.

[0090] The right support 9 is a concave arc shape with an upward opening, and the radius of the concave arc shape matches the radius of the starter motor. The inner arc surface of the right support 9 is provided with a downward recessed right support concave arc groove 9a. A sector gear 28 is embedded in the right support concave arc groove 9a, with the tooth surface of the sector gear 28 facing downward. The upper concave arc surface of the sector gear 28 is provided with a sector gear limiting plate 28b that is T-shaped and integrally connected with the concave arc surface. The bottom sides of the sector gear limiting plate 28b are attached to the sides of the right support concave arc groove 9a and match each other.

[0091] The right side wall of the sector gear 28 is provided with a sector gear concave arc groove 28a. The sector gear concave arc groove 28a and the sector gear limiting plate 28b are both coaxial with the sector gear 28. The right side wall of the right support 9 is provided with a small hole. The inner end of the limiting screw 10 is inserted into the sector gear concave arc groove 28a through the small hole to limit the sector gear 28, ensuring that the sector gear 28 can only swing around its own axis.

[0092] The bottom of the concave groove 9a of the right support communicates with the long groove 9c of the right support. The long groove 9c of the right support accommodates a rack 29. The left and right sides of the rack 29 engage with the sides of the long groove 9c of the right support, allowing the rack 29 to move only back and forth. The rack 29 meshes with the bottom of the sector gear 28. The bottom of the rack 29 is integrated with the top of the guide block 31. The left and right sides of the guide block 31 extend downward to form downward-opening guide grooves. A rack position adjusting rod 30 extending in the front-back direction is embedded in the guide grooves. The rack position adjusting rod 30 can only move back and forth to control the raising and lowering of the rack 29.

[0093] The top of the rack position adjusting rod 30 is flat, and the bottom of the rack position adjusting rod 30 has two sets of adjusting rod grooves 30b and a downwardly protruding adjusting rod protrusion 30a along its length. The adjusting rod grooves 30b transition to the adjusting rod protrusion 30a via inclined surfaces. The front end of the rack position adjusting rod 30 extends from the notch of the support groove front stop block 40 and is provided with an adjusting rod hook 30c, which facilitates pulling the rack position adjusting rod 30 in the front-back direction.

[0094] The right screw 32 is located in the slot of the right support groove 49 and below the rack position adjustment rod 30. Two movable screw blocks 33 are screwed onto the right screw 32. The tops of the two movable screw blocks 33 are located below the grooves 30b of the two adjustment rods respectively. The left and right sides of the two movable screw blocks 33 are flush with the side walls of the long groove 9c of the right support, so that the movable screw blocks 33 can only move in the front and back direction.

[0095] The rear end of the right screw 32 is rotatably supported in the rear stop block 34 of the right support groove, which is fixed to the rear port of the right support groove 49 by screws. The front end of the right screw 32 is rotatably supported in the front stop block 40 of the right support groove, which is fixed to the front port of the right support groove 49 by screws, so that the right screw 32 can only rotate and cannot move axially.

[0096] The front end of the right screw 32 is fixed to the right handle 46 by key 47. The center of the outer end face of the right handle 46 is pressed with a handle fixing nut 45. The handle fixing nut 45 is screwed onto the threaded section of the front end of the right screw 32. A handle extension rod 44 is hinged to the circumference of the right handle.

[0097] Rotating the right handle 46 and the right screw 32 via the extension rod 44 will cause the two movable screw blocks 33 to move back and forth synchronously. The left and right sides of the two movable screw blocks 33 are respectively fixedly connected to the guide block 31 above via connecting blocks 33a. When the two movable screw blocks 33 move back and forth, they will drive the guide block 31 and the rack 29 to move back and forth.

[0098] In the initial state, the groove 30b of the adjusting rod engages with the top of the two moving screw blocks 33. At this time, the rack position adjusting rod 30 is in a low position, causing the rack 29 to disengage from the sector gear 28.

[0099] Push the rack position adjusting rod 30 backward so that the protrusion 30a of the adjusting rod engages with the top of the two moving screw blocks 33. At this time, the rack position adjusting rod 30 rises to the high position, so that the rack 29 meshes with the sector gear 28.

[0100] When the rack 29 and sector gear 28 are engaged, the right screw 32 is rotated by the right handle 46. The right screw 32 and the moving screw block 33 drive the rack 29 to move through the screw drive. The rack 29 and sector gear 28 form a rack and pinion transmission, which causes the sector gear 28 to swing within a certain range.

[0101] The rack position adjusting lever 30 is used to adjust the meshing or non-meshing state of the rack 29 and the sector gear 28 according to the working conditions. When the diesel engine starter motor does not need to rotate in the direction of the diesel engine crankshaft during assembly, the rack 29 and the sector gear 28 should be in a non-meshing state first, and other states can be adjusted according to working needs.

[0102] Each of the two sector edges of the sector gear 28 is screwed with a retaining ring 28c. The middle part of the binding strap passes around the circumference of the diesel engine starter motor and its two ends are fixed to the retaining ring 28c. This allows the sector gear 28 to drive the diesel engine starter motor to rotate slightly, and facilitates the alignment of the mounting holes on the starter motor with the mounting holes on the motor mounting bracket for installing the fixing bolts.

[0103] The following are the operating procedures for installing a diesel engine starter motor:

[0104] S1. Fix this device to the side of the diesel engine base, specifically including: fixing the two rear support leg fixing clips 14 to the inclined wall slots of the diesel engine base respectively, and supporting the lower ends of the two front support leg lower rods 1 to the bottom plate of the diesel engine base through the front support leg pads 48 respectively; adjusting the two front support leg adjusting rods 2 and the two rear support leg adjusting rods 17 so that the left support slot 18 and the right support slot 49 are in a horizontal state and the height matches the height of the motor fixing support frame.

[0105] S2. Pull the rack position adjusting rod 30 forward so that the adjusting rod protrusion 30a is disengaged from the moving screw block 33, that is, the moving screw block 33 is located in the adjusting rod groove 30b, and the rack 29 and guide block 31 fall to the low position so that the rack 29 and sector gear 28 are in a non-meshing state.

[0106] S3. Then, rotate the forward and backward adjusting handwheel 3 to drive the left screw 43 to rotate forward. Since the left screw 43 is fixed in the left support groove 18 through the front stop block 40 and the rear stop block 34 of the support groove, it can only rotate. The screw hole at the lower end of the left support 5 cooperates with the left screw 43. Therefore, when the left screw 43 rotates forward, the left support 5 moves forward along the left support groove 18; at the same time, it drives the right support 9 to move forward synchronously along the right support groove 49; so that the position of the lateral moving support 7 is forward, which makes it easier to avoid interference with the diesel engine exhaust pipe and other components above when hoisting the diesel engine starter motor.

[0107] S4. The diesel engine starter motor is lifted and placed on the transverse moving support 7 using simple tools such as a lifting pole and a hand-operated hoist. The right end of the starter motor is fixed with a cable tie, and the two ends of the cable tie are fixed to the buckles 28c at both ends of the sector gear 28.

[0108] S5. Reverse rotation of the front and rear adjustment handwheel 3 causes the left support 5 and right support 9 to move backward synchronously through the reverse rotation of the left screw 43, so that the diesel engine starter motor gradually approaches the diesel engine body until the starter gear of the starter motor is aligned with the hole on the diesel engine motor mounting bracket.

[0109] S6. Rotate the worm handwheel 39 on the worm shaft 36 in the forward direction. The worm shaft 36 and the worm wheel 22 drive the worm wheel shaft 13 to rotate through the transmission of the worm shaft and worm wheel. Therefore, the transverse moving support 7 that cooperates with the worm wheel shaft 13 moves to the right through the screw drive. The diesel engine starter motor placed on the transverse moving support 7 also moves to the right side of the flywheel gear plate, so that the motor pinion passes through the motor seat hole until the flange of the starter motor contacts the flange of the motor fixed support. At this time, the motor pinion meshes with the flywheel gear plate of the diesel engine.

[0110] S7. If the mounting holes on the starter motor flange are aligned with the mounting holes on the motor mounting bracket flange, then directly insert bolts for fixing.

[0111] If the mounting holes on the starter motor flange are not aligned with the mounting holes on the motor mounting bracket flange, proceed to the next step.

[0112] S8. Push the rack position adjusting rod 30 backward so that the protrusion 30a of the adjusting rod engages with the top of the two moving screw blocks 33. At this time, the rack position adjusting rod 30 rises to the high position, so that the rack 29 rises and meshes with the sector gear 28.

[0113] S9. Turn the right handle to drive the right screw 32 to rotate. Since the right screw 32 is axially positioned, the two moving screw blocks 33 drive the rack 29 and guide block 31 above to move back and forth. The sector gear 28 swings at a certain angle, driving the diesel engine starter motor to rotate within a certain range until the mounting hole on the starter motor flange is aligned with the mounting hole on the motor fixed support bracket flange. Then, bolts are inserted for fixing.

[0114] The above description is merely a preferred embodiment of the present invention, showing and describing the basic principles, main features, and advantages of the present invention. It is not intended to limit the scope of patent protection of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. In addition to the above embodiments, the present invention may have other implementations without departing from the spirit and scope of the invention. Various changes and modifications to the present invention are possible, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents. Technical features not described in the present invention can be implemented by or using existing technology, and will not be elaborated here.

Claims

1. A starting motor mounting device for a diesel engine used in oil drilling, characterized in that, include: Left support groove (18), located on the left side, has an upward-opening U-shaped groove that extends along a horizontal line in the front-rear direction; The right support groove (49) is located on the right side and has an upward-opening U-shaped groove that extends along the horizontal line in the front-back direction. The front and rear ends are connected to the left support groove (18) as a whole by a horizontal long fixing rod (12). The left support (5) is an arc shape with an upward opening and its bottom is supported on the left support groove (18) and can move back and forth. The right support (9) is an arc shape with an upward opening and its bottom is supported on the right support groove (49) and can move back and forth with the left support (5); Guide rods (8), two parallel rods connected between the upper ends of the left support (5) and the right support (9); The lateral moving support (7) is an arc shape with an upward opening and is fixedly connected in pairs on the left and right as a whole. The upper end is suspended on the guide rod (8) through the guide hole. The bottom plane of the right support (9) is provided with an upwardly recessed and front-to-back through long groove (9c) of the right support, and the inner arc surface of the right support (9) is provided with a downwardly recessed right support concave arc groove (9a), and a sector gear (28) is embedded in the right support concave arc groove (9a), with the tooth surface of the sector gear (28) facing downward. The bottom of the right support concave groove (9a) communicates with the right support long groove (9c). The right support long groove (9c) contains a rack (29) that meshes with the sector gear (28). The left and right sides of the rack (29) are engaged with the two sides of the right support long groove (9c). The bottom of the rack (29) is provided with a guide block (31) integrated with it. The left and right sides of the guide block (31) extend downward to form a guide groove with a downward opening. The guide groove is embedded with a rack position adjustment rod (30) for controlling the rise and fall of the rack (29). The top of the rack position adjusting rod (30) is a plane, and the bottom of the rack position adjusting rod (30) is provided with two sets of adjusting rod grooves (30b) and downward protruding adjusting rod protrusions (30a) along the length direction. The two adjusting rod grooves (30b) are respectively transitioned to the corresponding adjusting rod protrusions (30a) through inclined surfaces. The right support groove (49) is provided with an axially positioned and rotatable right screw (32). Two movable screw blocks (33) are screwed onto the right screw (32). The left and right sides of the two movable screw blocks (33) are respectively fixedly connected to the upper guide block (31) through connecting blocks (33a). The tops of the two movable screw blocks (33) abut against the lower part of the adjusting rod groove (30b) or the adjusting rod protrusion (30a) simultaneously.

2. The installation device for a diesel engine starter motor for oil drilling according to claim 1, characterized in that: The front and rear ends of the left support groove (18) and the right support groove (49) are respectively supported on the diesel engine base by adjustable support legs.

3. The installation device for a diesel engine starter motor for oil drilling according to claim 1, characterized in that: The radius of the arc surface of the left support (5), the right support (9) and the transverse moving support (7) are all matched with the radius of the diesel engine starter motor. The two ends of the diesel engine starter motor body rest on the two transverse moving supports (7).

4. The installation device for a diesel engine starter motor for oil drilling according to claim 1, characterized in that: The front and rear sides of the lower part of the two lateral moving supports (7) are connected to each other as a whole by short connecting rods (6), and the two short connecting rods (6) and the guide rod (8) above are distributed in an isosceles trapezoidal shape.

5. The installation device for a diesel engine starter motor for oil drilling according to claim 1, characterized in that: The bottom sides of the left support (5) are supported on the top of the left support groove (18) on both sides. The bottom center of the left support (5) is provided with a downward protruding left support lower protrusion. The left and right sides of the left support lower protrusion are respectively attached to the side wall of the groove of the left support groove (18). The center of the left support lower protrusion is provided with a left support screw hole. The left screw (43) is installed in the groove of the left support groove (18) and its middle part is screwed to the left support screw hole.

6. The installation device for a diesel engine starter motor for oil drilling according to claim 5, characterized in that: The rear end of the left screw (43) is rotatably supported in the left support groove rear stop block (34), which is fixed to the rear port of the left support groove (18) by screws. The front end of the left screw (43) is rotatably supported in the front stop block (40) of the left support groove. The front stop block (40) of the left support groove is fixed to the front port of the left support groove (18) by screws. The front end of the left screw (43) is fixed with a front and rear adjustment handwheel (3).

7. The installation device for a diesel engine starter motor for oil drilling according to claim 1, characterized in that: The front support leg adjusting rod (2) is fixed below the front end of the left support groove (18) and the right support groove (49), and the two front support leg adjusting rods (2) are respectively screwed with the front support leg lower rod (1). The lower ends of the two front support leg lower rods (1) are respectively supported on the bottom plate of the diesel engine base through the front support leg pad (48). The rear support leg adjusting rod (17) is fixed below the front end of the left support groove (18) and the right support groove (49), respectively. The lower ends of the two rear support leg adjusting rods (17) are respectively screwed with the lower rear support leg rods (15), and the lower ends of the two rear support leg rods (15) are respectively hinged with the rear support leg fixing clips (14). The two rear support leg fixing clips (14) are respectively fixed on the inclined wall hole groove of the diesel engine base.

8. The installation device for a diesel engine starter motor for oil drilling according to claim 1, characterized in that: The lower middle part of the opposite end face of the two transverse moving supports (7) is provided with moving support drive rods (7a) that first extend towards each other and then bend downward. The lower end of the two moving support drive rods (7a) is provided with moving support drive nuts. The two moving support drive nuts are screwed onto the threaded section of the worm gear shaft (13). When the worm gear shaft (13) rotates, the two moving support drive nuts carry the two transverse moving supports (7) to translate in the left and right directions.

9. The installation device for a diesel engine starter motor for oil drilling according to claim 8, characterized in that: The left end of the worm gear shaft (13) is driven by the worm gear box assembly, and the right end of the worm gear shaft (13) is supported on the lower end of the worm gear shaft fixing bracket (27). The worm gear shaft fixing bracket (27) is triangular and its upper two ends are fixedly connected to the right support ear plate (9b) by bolts. The right support ear plate (9b) is located on the front and rear sides of the bottom left of the right support (9).

10. The installation device for a diesel engine starter motor for oil drilling according to claim 9, characterized in that: The worm gear box assembly has a worm wheel (22) and a worm shaft (36) meshing with each other in the box (16). The box (16) is close to the inner end face of the left support (5) and is fixedly connected to the lower part of the left support (5). The worm wheel (22) is fixed on the worm shaft (13). The front end of the worm shaft (13) extends out of the box (16) and is equipped with a worm handwheel (39).

11. The installation device for a diesel engine starter motor for oil drilling according to claim 10, characterized in that: The middle two side walls of the right support groove (9c) are respectively provided with downwardly extending drooping limiting plates (9d). The two drooping limiting plates (9d) are respectively inserted into the groove of the right support groove (49) so that the right support (9) is positioned in the left and right directions.

12. The installation device for a diesel engine starter motor for oil drilling according to claim 1, characterized in that: The upper concave surface of the sector gear (28) is provided with a sector gear limiting plate (28b) that is connected to the concave surface in a T-shape and integrated with it. The bottom sides of the sector gear limiting plate (28b) are attached to the two sides of the concave groove (9a) of the right support and are matched with each other.

13. The installation device for a diesel engine starter motor for oil drilling according to claim 12, characterized in that: The right side wall of the sector gear (28) is provided with a sector gear concave arc groove (28a), and the sector gear concave arc groove (28a) and the sector gear limiting plate (28b) are coaxial with the sector gear (28); the inner end of the limiting screw (10) passes through the small hole on the right side wall of the right side support (9) and is embedded in the sector gear concave arc groove (28a).

14. The installation device for a diesel engine starter motor for oil drilling according to claim 1, characterized in that: The rear end of the right screw (32) is rotatably supported in the rear stop block (34) of the support groove, and the rear stop block (34) of the support groove is fixed to the rear port of the right support groove (49); the front end of the right screw (32) is rotatably supported in the front stop block (40) of the support groove, and the front stop block (40) of the support groove is fixed to the front port of the right support groove (49); and a right handle (46) is fixed to the front end of the right screw (32).

15. The installation device for a diesel engine starter motor for oil drilling according to claim 14, characterized in that: The front end of the rack position adjusting rod (30) extends out of the notch of the front stop block (40) of the support groove and is provided with an adjusting rod hook (30c).

16. The installation device for a diesel engine starter motor for oil drilling according to claim 13, characterized in that: The two sector edges of the sector gear (28) are respectively screwed with buckles (28c), and the middle part of the binding strap goes around the circumference of the diesel engine starter motor and both ends are fixed on the buckles (28c).

17. A method for installing a starter motor for a diesel engine used in oil drilling, comprising the installation device for a diesel engine starter motor used in oil drilling as described in any one of claims 1 to 16, characterized in that, The steps are as follows: S1. Fix the diesel engine starter motor mounting device for oil drilling to the side of the diesel engine base, adjust the left support slot (18) and the right support slot (49) to be in a horizontal state, and match the height of the motor fixing support frame. S2. Pull the rack position adjusting rod (30) forward so that the rack (29) and the sector gear (28) are in a non-meshing state; S3. Then rotate the front and rear adjustment handwheel (3) in the forward direction to drive the left screw (43) to rotate in the forward direction, so that the left support (5) moves forward along the left support groove (18); at the same time, it drives the right support (9) to move forward synchronously along the right support groove (49); S4. Lift the diesel engine starter motor and place it on the transverse moving support (7). Fix the right end of the starter motor with a cable tie. Fix both ends of the cable tie to the buckles (28c) at both ends of the sector gear (28). S5. Rotate the front and rear adjustment handwheel (3) in the opposite direction. By rotating the left screw (43) in the opposite direction, the left support (5) and the right support (9) move backward synchronously, so that the diesel engine starter motor gradually approaches the diesel engine body until the starter gear of the starter motor is aligned with the hole on the diesel engine motor fixed support bracket. S6. Rotate the worm handwheel (39) on the worm shaft (36) in the forward direction to move the transverse moving support (7) to the right. The diesel engine starter motor also moves to the right, so that the motor pinion passes through the motor seat hole until the flange of the starter motor contacts the flange of the motor fixed support. At this time, the motor pinion meshes with the flywheel gear of the diesel engine. S7. If the mounting holes on the starter motor flange are aligned with the mounting holes on the motor mounting bracket flange, then directly insert bolts for fixing. If the mounting holes on the starter motor flange are not aligned with the mounting holes on the motor mounting bracket flange, proceed to the next step. S8. Push the rack position adjusting rod (30) backward so that the protrusion (30a) of the adjusting rod engages with the top of the two moving screw blocks (33). At this time, the rack position adjusting rod (30) rises to the high position, so that the rack (29) rises and meshes with the sector gear (28). S9. Turn the right handle to drive the right screw (32) to rotate, which will cause the rack (29) and guide block (31) above to move back and forth. The sector gear (28) swings at a certain angle, which will drive the diesel engine starter motor to rotate within a certain range until the mounting hole on the starter motor flange is aligned with the mounting hole on the motor fixed support bracket flange. Then, insert bolts to fix it.

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