Hydraulic linear motorized mechanism convenient to use and capable of achieving self-clutch interlocking hand wheel autorotation

Abstract

The utility model relates to a hydraulic linear motorized mechanism convenient for self-clutch interlocking hand wheel autorotation, the rear end of a mounting shaft hole of a second wheel shaft (4) is expanded to form a single-action oil cylinder cavity, a check ring (6) and a supporting ring (9) are mounted on the rear end face of the second wheel shaft (4) in a compression joint manner, the outer edges of the check ring (6) and the supporting ring (9) cling to the inner wall of the single-action oil cylinder cavity, and a rear cover body (2) is mounted on the rear end face of the mounting shaft hole of the second wheel shaft (4) in a compression joint manner. The second gear (10) is partially meshed with the outer edge of the front section of the third wheel shaft (5) and axially slides, and when the left end of the second wheel shaft (4) and the check ring (6) backwards slide in place and abut against the inner side face of the rear cover body (2), the outer edge of the front section of the second wheel shaft (4) is partially meshed with the outer edge of the first gear (7). In a manual and motorized transmission mechanism of the grinding machine, a single-action oil cylinder cavity and a piston structure are arranged to drive a second wheel shaft and a first gear to be meshed and locked to form manual operation operated by a hand wheel, or the second wheel shaft and the first gear are disengaged and unlocked, passive autorotation of the hand wheel caused by hydraulic driving is avoided, locking and unlocking are automatic and convenient, and the working efficiency is improved. The mechanism is simple and compact in design and convenient to operate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the IPC classification F16H47 / 00 mechanical transmission device or B23B21 / 00 lathe apron technology, and particularly relates to a structure improvement technology of a manual and motorized transmission mechanism applied to a grinding machine. BACKGROUND

[0002] The manual and motorized transmission mechanism for the grinding machine realizes motion conversion and power transmission, and comprises components such as a motor, a speed reducer and a transmission shaft, and drives a slide rail and a tool holder to perform accurate linear or curved motion. High-precision rolling bearings or sliding guide rail structures are usually used to ensure the stability and precision of the tool holder during movement. The transmission mechanism part is similar to the structure of the apron box of the machine tool.

[0003] The apron box has a mechanism for converting the rotary motion of the light lever and the screw rod into linear motion of the tool holder. The apron box is widely used in various lathes, such as ordinary lathes, saddle lathes, etc. During turning, the apron box controls the movement of the tool holder through the operation handle to realize accurate machining of the workpiece. The apron box, also known as the apron box, is a control box for the feed motion of the lathe. The apron box receives the motion from the self-feeding box through the light lever or the screw rod, and transmits the motion to the tool holder part to realize longitudinal feed, transverse feed, rapid movement or thread turning. The apron box has various operation handles and buttons, and the worker can conveniently operate the machine tool during work.

[0004] There are many improvements in the important transmission mechanism of the apron box.

[0005] For example, Chinese patent application 202410328474.2 discloses an apron box, which comprises a shell, an opening and closing nut mechanism, a shedding mechanism, a transmission mechanism and an interlocking mechanism. The opening and closing nut mechanism comprises a nut seat, an opening and closing nut and a control assembly. The nut seat is slidably inserted into the shell, and the opening and closing nut is installed on the nut seat. The control assembly is used to control the vertical movement of the nut seat. The shedding mechanism comprises a push block, a push fork and a transmission piece. The push block is hinged to the shell, and the push block is provided with a first positioning groove. The push fork is hinged to the shell and has a first driving part slidably inserted into the first positioning groove. The transmission piece is rotationally connected to the push fork. The interlocking mechanism is arranged between the opening and closing nut mechanism and the shedding mechanism. The transmission mechanism is arranged between the shedding mechanism and the machine tool.

[0006] For example, Chinese patent application 201120251843.0 discloses a transmission mechanism, specifically a hydraulic interlock transmission mechanism for machine tools. It includes a fixed base, in which a manual transmission mechanism and a hydraulic transmission mechanism are provided. The hydraulic transmission mechanism includes a gear shaft, a bevel gear, a splined shaft, a transmission bearing, a spur gear, an upper bearing end cover, a lower bearing end cover, a spring, a piston, and a cylinder. The manual transmission mechanism includes a manual transmission shaft, a retaining ring, a bearing, an inner spacer, an outer spacer, a bearing housing, and a machine body.

[0007] The function of the apron in a lathe is to convert the rotary motion transmitted by the leadscrew or feed rod into linear motion, driving the tool post feed and enabling the conversion between fast and slow speeds of the tool post movement. Both the leadscrew and feed rod are connected to the feed box. The leadscrew is used for thread cutting, causing the apron slide and the cutting tool to move at the required speed. The feed rod transmits the feed box's power to the apron, causing the slide and cutting tool to move at a specific speed. Since the leadscrew and feed rod are two separate power sources, if both are connected to the apron simultaneously, it will cause problems with the apron's movement. The apron is equipped with an interlocking mechanism to prevent the leadscrew and feed rod from being used concurrently.

[0008] In grinding machine technology, the manual operation of the transmission mechanism via a handwheel to achieve linear feed has become increasingly mature. However, in manufacturing and application, when the moving part can be driven to move linearly by either the handwheel cranking the gear mechanism to drive the rack, or by the hydraulic cylinder pushing its mechanical movement linearly, the rack, along with the movement of the moving part, will drive the gear mechanism to rotate in the opposite direction, thus causing the handwheel to also rotate. Moreover, the rotation of the handwheel caused by the movement of the moving part can create a hazard of the handle becoming entangled. Utility Model Content

[0009] This utility model proposes a convenient self-clutching interlocking handwheel self-rotating hydraulic linear motor mechanism, which aims to improve the shortcomings of the existing mechanism, ensure that when one operation mode is in manual or motorized mode, the other operation mode is effectively locked or prohibited, prevent misoperation or equipment damage, ensure stable and reliable operation, and facilitate disassembly and assembly, thus solving the aforementioned existing problems.

[0010] For this purpose, the utility model, including: body shell, back cover body, first wheel shaft, second wheel shaft, third wheel shaft, baffle ring, first gear, support ring, second gear and hand wheel. The first wheel shaft, second wheel shaft and third wheel shaft are installed through on the body shell, and the first wheel shaft, second wheel shaft and third wheel shaft are parallel to each other, the first wheel shaft front end installs the first gear, the second wheel shaft front end installs the second gear, and the third wheel shaft front end installs the hand wheel, wherein the second wheel shaft is slidably installed in the shaft hole, the rear end of the installation shaft hole of the second wheel shaft is expanded to form a single-acting cylinder cavity, the rear end of the second wheel shaft is press-jointed with the baffle ring and the support ring, the outer edge of the baffle ring and the support ring is tightly attached to the inner wall of the single-acting cylinder cavity, the back cover body is press-fitted on the rear end face of the installation shaft hole of the second wheel shaft, and the back cover body is connected with the single-acting cylinder cavity through the hole in the middle part, the second gear is engaged with the partial outer edge of the front section of the third wheel shaft and is axially slidably, when the left end of the second wheel shaft and the baffle ring slide to the right and tightly abut against the inner side of the back cover body, the partial outer edge of the front section of the second wheel shaft is engaged with the outer edge of the first gear.

[0011] Wherein, the outer edge of the rear end of the second wheel shaft is sleeved with a spring, and the support ring is sleeved outside the spring. The baffle ring is fixed by paper pad press-jointing on the rear end face of the second wheel shaft.

[0012] Wherein, the body shell is in the structure of rectangular square board, and the shaft pedestals are respectively arranged in the middle part of the cross section of the front and rear sides of the body shell; the first shaft hole, the second shaft hole and the third shaft hole are respectively formed through the shaft pedestals; wherein, the rear end of the second shaft hole is expanded to form a single-acting cylinder cavity; wherein, the first shaft hole is located in the upper part of the vertical surface of the body shell, the third shaft hole is located on the lower side edge of the first shaft hole, and the second shaft hole is located between the first shaft hole and the second shaft hole below the third shaft hole; further, the first deep oil groove is radially formed in the top wall of the first shaft hole; the third deep oil groove is radially formed in the top wall of the third shaft hole; the side top hole is radially formed in the side wall of the third shaft hole; further, the corner parts of the body shell are respectively provided with the external mounting holes, and the taper pin holes are respectively formed beside the two external mounting holes at opposite corners.

[0013] The back cover body is in the form of a disc, the back cover body has a back cover hole in the middle part, and at least three back cover edge holes are uniformly distributed on the edge of the back cover body.

[0014] Further, in order to achieve the above purpose, the utility model is provided as follows:

[0015] In particular, the first axle is sequentially provided with a first axle head, a first axle rod, a first axle connecting rod and a first axle rear joint from front to rear, and the outer diameter of the first axle head, the first axle rod, the first axle connecting rod and the first axle rear joint gradually increases, wherein the first axle rear joint is provided with a tooth groove on the outer edge, and the first axle head is provided with a first axle key groove extending in the axial direction on the outer wall. The second axle is sequentially provided with a second axle head, a second axle gear ring and a second axle rod from front to rear; wherein the second axle gear ring is provided with a tooth groove on the outer edge, and the outer diameter of the second axle gear ring is greater than that of the second axle head and the second axle rod; wherein a second axle tail middle hole in the form of a blind hole structure is formed in the middle of the rear end surface of the second axle rod, a second axle tail edge hole is formed in the edge of the rear end surface of the second axle rod, and a second axle key groove extending in the axial direction is formed on the outer wall of the second axle head. The third axle is sequentially provided with a third axle head, a third axle gear ring, a third axle, a third axle rod front segment, a third axle connecting rod and a third axle rod rear segment from front to rear; wherein the third axle gear ring is provided with a tooth groove on the outer edge; the outer diameter of the third axle gear ring is greater than that of the third axle head, the third axle rod front segment and the third axle rod rear segment, and the outer diameter of the third axle head, the third axle rod front segment and the third axle rod rear segment is greater than that of the third axle and the third axle connecting rod; wherein a third axle front middle hole is formed in the middle of the front end surface of the third axle head, and a third axle key groove is formed on the outer wall of the third axle head.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] In the transmission mechanism technology of the grinding machine manual and motor, through setting single -acting oil cylinder cavity and piston structure, with first gear meshing locking is formed by hand wheel operation manual, or second axle and first gear is separated and is unlocked, avoids the hand wheel passive autorotation caused by hydraulic drive, and the locking and unlocking are automatically completed conveniently, the mechanism design is simple and compact, operation is simple, reduces the occupied space and improves the overall aesthetic degree. Smooth feeding movement is realized, the machining precision and efficiency are improved, the use is safe, the manufacturing cost is low. It is ensured that no fault or failure occurs in the long-term use process. It is ensured that the normal operation and the service life are prolonged. It is ensured that the reliability and safety of the transmission mechanism work. BRIEF DESCRIPTION OF DRAWINGS

[0018] The following drawings are schematic and should not be understood as any limitation on the utility model. By referring to the following drawings, the reader can help understand the embodiments of the utility model and further understand the advantages and technical features of the utility model.

[0019] Figure 1 It is a body shell one side outer end surface structure schematic diagram of the utility model embodiment 1.

[0020] Figure 2 It is Figure 1 It is a middle A-A cross section structure schematic diagram.

[0021] Figure 3 It is another side outer end structure schematic diagram of the utility model embodiment 1 in body shell.

[0022] Figure 4 For Figure 3 Fig. 2 is a schematic diagram of a partial cross-sectional structure of the body shell A-A.

[0023] Figure 5 For Figure 3 Fig. 3 is a schematic diagram of a cross-sectional structure of the body shell C-C.

[0024] Figure 6 Fig. 4 is a schematic diagram of a structure of the rear cover body in the embodiment 1 of the utility model.

[0025] Figure 7 Fig. 5 is a schematic diagram of a structure of the first axle in the embodiment 1 of the utility model.

[0026] Figure 8 Fig. 6 is a schematic diagram of a structure of the second axle in the embodiment 1 of the utility model.

[0027] Figure 9 Fig. 7 is a schematic diagram of a structure of the third axle in the embodiment 1 of the utility model.

[0028] The reference signs include:

[0029] 1-body shell, 2-rear cover body, 3-first axle, 4-second axle, 5-third axle, 6-retaining ring, 7-first gear, 8-paper pad, 9-retaining ring, 10-second gear, 11-spring, 12-hand wheel.

[0030] 101-outer hole, 102-axle seat, 103-first axle hole, 104-second axle hole, 105-third axle hole, 106-side top hole, 107-third deep oil groove, 108-first deep oil groove, 109-taper pin hole; 1041-single-acting oil cylinder cavity;

[0031] 201-rear cover middle hole, 202-rear cover side hole; 301-first axle head, 302-first axle rod, 303-first axle connecting rod, 304-first axle rear joint, 305-first axle key groove;

[0032] 401-second axle head, 402-second axle tooth ring, 403-second axle rod, 404-second axle tail middle hole, 405-second axle tail side hole, 406-second axle key groove;

[0033] 501-third axle head, 502-third axle tooth ring, 503-third axle, 504-third axle rod front section, 505-third axle connecting rod, 506-third axle rod rear section, 507-third axle front middle hole, 508-third axle key groove. DETAILED DESCRIPTION

[0034] It should be noted that in the description of the utility model, the terms "comprising" and "having" and any variations thereof are intended to cover other possible choices not listed under the same logic; the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships commonly used when the utility model product is used, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0035] It should also be noted that, unless otherwise explicitly specified and limited, the terms "providing", "installing", "connecting", "connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements.

[0036] For those skilled in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances. Unless otherwise limited, all technical and scientific terms used in this paper have the same meaning as generally understood by those skilled in the art to which the utility model belongs. When there is a contradiction, the definition in the specification shall prevail.

[0037] In the prior art, the interlocking mechanism refers to a safety mechanism in which the mutual positions of the shift fork shafts are restricted. In mechanical equipment, the interlocking mechanism can prevent two gears from being engaged at the same time or two mutually conflicting operations from being performed. This mechanism is commonly used in the fields of automobile manual transmission, machine tools, automated production lines, etc. to ensure the safety and accuracy of operation. Among them, the mechanism for interlocking manual operation and motor operation usually refers to the interlocking mechanism used in the transmission operating mechanism. This mechanism usually needs to set and operate the shift fork shaft to unlock and lock different transmission connection relationships, so as to realize the transmission mechanism to adapt to manual operation and motor operation. In machine tools, the interlocking mechanism is used to prevent manual operation and motor operation from being performed at the same time to prevent misoperation or equipment damage.

[0038] The utility model discloses a principle is at, utilize hydraulic transmission principle, combine mechanical design and hydraulic transmission technology, adopt hydraulic system as power source, through hydraulic pump and deliver hydraulic oil to such as hydraulic cylinder execution element, to drive linear motion, realize the connection and disconnect between hand wheel and transmission shaft, while giving consideration to system self -off coupling locking automatic switching support manual operation and motorized operation different work demand, realize avoiding hand wheel passive autorotation, and, through further improvement, can also ensure that hand wheel can lock in the required position under certain conditions.

[0039] The utility model discloses a principle is at, utilize hydraulic transmission principle, combine mechanical design and hydraulic transmission technology, adopt hydraulic system as power source, through hydraulic pump and deliver hydraulic oil to such as hydraulic cylinder execution element, to drive linear motion, realize the connection and disconnect between hand wheel and transmission shaft, while giving consideration to system self -off coupling locking automatic switching support manual operation and motorized operation different work demand, realize avoiding hand wheel passive autorotation, and, through further improvement, can also ensure that hand wheel can lock in the required position under certain conditions.

[0040] As shown in the accompanying Figure 1 And 2 The utility model discloses a principle is at, utilize hydraulic transmission principle, combine mechanical design and hydraulic transmission technology, adopt hydraulic system as power source, through hydraulic pump and deliver hydraulic oil to such as hydraulic cylinder execution element, to drive linear motion, realize the connection and disconnect between hand wheel and transmission shaft, while giving consideration to system self -off coupling locking automatic switching support manual operation and motorized operation different work demand, realize avoiding hand wheel passive autorotation, and, through further improvement, can also ensure that hand wheel can lock in the required position under certain conditions.

[0041] The utility model discloses a principle is at, utilize hydraulic transmission principle, combine mechanical design and hydraulic transmission technology, adopt hydraulic system as power source, through hydraulic pump and deliver hydraulic oil to such as hydraulic cylinder execution element, to drive linear motion, realize the connection and disconnect between hand wheel and transmission shaft, while giving consideration to system self -off coupling locking automatic switching support manual operation and motorized operation different work demand, realize avoiding hand wheel passive autorotation, and, through further improvement, can also ensure that hand wheel can lock in the required position under certain conditions.

[0042] The utility model discloses a principle is at, utilize hydraulic transmission principle, combine mechanical design and hydraulic transmission technology, adopt hydraulic system as power source, through hydraulic pump and deliver hydraulic oil to such as hydraulic cylinder execution element, to drive linear motion, realize the connection and disconnect between hand wheel and transmission shaft, while giving consideration to system self -off coupling locking automatic switching support manual operation and motorized operation different work demand, realize avoiding hand wheel passive autorotation, and, through further improvement, can also ensure that hand wheel can lock in the required position under certain conditions.

[0043] In order to make the person skilled in the art better understand the utility model scheme, below will combine the drawings in the utility model embodiment, to the technical scheme in the utility model embodiment is clearly, completely described, obviously, the described embodiment only is the embodiment of a part of the utility model, is not all the embodiment.

[0044] Embodiment 1: as shown in the accompanying Figure 3 , 4As shown in Figure 5, the shell 1 has a rectangular plate structure, and shaft seats 102 are respectively protruding from the middle of the front and rear cross sections of the shell 1; the shaft seats 102 have a first shaft hole 103, a second shaft hole 104, and a third shaft hole 105 through them; wherein, the rear end of the second shaft hole 104 is enlarged to form a single-acting cylinder cavity 1041; wherein, the first shaft hole 103 is located in the upper middle part of the vertical surface of the shell 1, the third shaft hole 105 is located on one side edge below the first shaft hole 103, and the second shaft hole 104... Located below the third shaft hole 105, that is, between the first shaft hole 103 and the second shaft hole 104; further, a first deep oil groove 108 is radially opened on the top wall of the first shaft hole 103; a third deep oil groove 107 is radially opened on the top wall of the third shaft hole 105; a side top hole 106 is radially opened on the side wall of the third shaft hole 105; further, external mounting holes 101 are respectively opened through the corners of the body shell 1, and tapered pin holes 109 are respectively opened next to the two diagonally opposite external mounting holes 101.

[0045] As attached Figure 6 As shown, the rear cover 2 is disc-shaped, with a central hole 201 in the middle and at least three side holes 202 evenly distributed along its edges.

[0046] As attached Figure 7 As shown, the first wheel shaft 3 is provided with a first shaft head 301, a first shaft rod 302, a first shaft connecting rod 303 and a first shaft rear connector 304 with gradually increasing outer diameters from the front end to the rear end. The first shaft rear connector 304 has a toothed groove on its outer edge, and the first shaft head 301 has an axially extending first shaft keyway 305 on its outer edge.

[0047] As attached Figure 8 As shown, the second shaft 4 is provided with a second shaft head 401, a second shaft gear ring 402 and a second shaft rod 403 in sequence from the front end to the rear end; wherein, the outer edge of the second shaft gear ring 402 is provided with a tooth groove, and the outer diameter of the second shaft gear ring 402 is larger than that of the second shaft head 401 and the second shaft rod 403; wherein, the rear end face of the second shaft rod 403 has a second shaft tail central hole 404 with a blind hole structure in the middle, and a second shaft tail edge hole 405 is opened at the edge of the rear end face of the second shaft rod 403; and the outer wall of the second shaft head 401 has an axially extending second shaft keyway 406.

[0048] As attached Figure 9As shown, the third axle 5 is sequentially provided with a third axle head 501, a third axle gear ring 502, a third axle 503, a third axle rod front section 504, a third axle connecting rod 505 and a third axle rod rear section 506 from front end to rear end; the third axle gear ring 502 is provided with a gear groove at the outer edge; the outer diameter of the third axle gear ring 502 is greater than the outer diameters of the third axle head 501, the third axle rod front section 504 and the third axle rod rear section 506, and the outer diameters of the third axle head 501, the third axle rod front section 504 and the third axle rod rear section 506 are greater than the outer diameters of the third axle 503 and the third axle connecting rod 505; the third axle head 501 is provided with a third axle front middle hole 507 in the middle of the front end surface, and the outer wall of the third axle head 501 is provided with a third axle key groove 508.

[0049] In the embodiment of the utility model, the second axle 4, namely the second axle rod 403, is provided with a spring 11 at the outer edge of the rear end, a supporting ring 9 is sleeved outside the spring 11, the second axle 4, namely the second axle rod 403, is pressed and connected with the retainer ring 6 by the paper pad 8 and is fixed by screwing into the second axle tail middle hole 404. Correspondingly, the rear cover body 2 is fixed on the second axle hole 104 rear end port along by the three rear cover edge holes 202 of the edge through screws.

[0050] In the embodiment of the utility model, the first axle 3 is inserted into the first axle hole 103 from rear to front, the first axle head 301 of the first axle 3 is inserted into the hole of the first gear 7 and is fixed by the first axle key groove 305. The second axle 4 is inserted into the second axle hole 104 from front to rear, the second axle head 401 is inserted into the hole of the second gear 10 and is fixed by the second axle key groove 406. The third axle 5 is inserted into the third axle hole 105 from front to rear, the third axle head 501 is inserted into the hole of the hand wheel 12 and is fixed by the third axle key groove 508.

[0051] In the embodiment of the utility model, the mechanism is installed on the first axle 3, the second axle 4, the third axle 5, the first gear 7 and the second gear 10 of the body shell 1; the single-acting oil cylinder cavity 1041 is arranged at the rear section of the second axle hole 104 of the body shell 1; the retainer ring 6 and the supporting ring 9 installed at the tail end of the second axle 4 constitute the piston of the single-acting oil cylinder cavity 1041, and the rear cover middle hole 201 in the axial middle part of the rear cover body 2 serves as the oil inlet of the oil cylinder. Under the action of the hydraulic pressure and the spring, the piston slides forward and backward in the single-acting oil cylinder cavity 1041, so that the second axle 4 slides forward and backward in the second axle hole 104, and the first gear 7 and the second axle gear ring 402 of the second gear 10 are combined or separated to be unlocked.

[0052] The implementation principle of the embodiment is as follows: when manually operated, the oil cylinder is discharged to release pressure, the spring 11 installed in the single-acting oil cylinder cavity 1041 is reset and pushed, the blocking ring 6 and the supporting ring 9 at the tail end of the second wheel shaft 4 play the role of a piston, the inner end face of the rear cover body 2 is tightly pushed, the second shaft tooth ring 402 of the second wheel shaft 4 is engaged with the first gear 7, the hand wheel 12 drives the third wheel shaft 5 to rotate, the third wheel shaft 5 drives the second gear 10 to rotate through the third shaft tooth ring 502, and the second gear 10 drives the first gear 7 to rotate through the second shaft tooth ring 402 of the second wheel shaft 4; further, the first gear 7 drives the rack connected thereto to realize linear motion through the first shaft rear connector 304 at the rear end of the first wheel shaft 3.

[0053] When motor operated, the hydraulic system is pressurized, and when the rack moves linearly, the first wheel shaft 3 and the first gear 7 are also driven to rotate through the first shaft rear connector 304 engaged therewith; however, due to synchronization, the hydraulic cylinder is pressurized by oil injection, the blocking ring 6 and the supporting ring 9 are pushed to move the piston, the second wheel shaft 4 is pushed to move forward, the second shaft tooth ring 402 of the second wheel shaft 4 is disengaged from the first gear 7 and is unlocked; at this time, although the first wheel shaft 3 and the first gear 7 rotate, the second gear 10 and the third wheel shaft 5 do not rotate, and the hand wheel 12 is not passively rotated.

[0054] When the motor operation is stopped, the hydraulic oil circuit is closed, the pressure in the single-acting oil cylinder cavity 1041 is reduced, the second wheel shaft 4 is reset under the action of the spring 11, the second shaft tooth ring 402 on the second wheel shaft 4 is engaged with the first gear 7 fixed at the front end of the first wheel shaft 3, and the mechanism returns to the manual operation state.

[0055] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction, and to avoid unnecessary repetition, various possible combinations are not described again in the present application. In addition, various different embodiments of the present application can also be combined in any manner, as long as it does not deviate from the idea of the present application, it should also be considered as disclosed in the present application.

Claims

1. A hydraulic linear motor mechanism with self-rotation of hand wheel and self-clutch interlocking, comprising a body shell (1), a rear cover body (2), a first wheel shaft (3), a second wheel shaft (4), a third wheel shaft (5), a check ring (6), a first gear (7), a support ring (9), a second gear (10) and a hand wheel (12); characterized in that, The first wheel shaft (3), the second wheel shaft (4) and the third wheel shaft (5) are installed through the body shell (1); the first wheel shaft (3), the second wheel shaft (4) and the third wheel shaft (5) are parallel to each other; the first wheel shaft (3) is provided with a first gear (7) at the front end, the second wheel shaft (4) is provided with a second gear (10) at the front end, and the third wheel shaft (5) is provided with a hand wheel (12) at the front end; wherein the second wheel shaft (4) is slidably installed in the shaft hole, the rear end of the installation shaft hole of the second wheel shaft (4) is expanded to form a single-acting oil cylinder cavity, the rear end face of the second wheel shaft (4) is press-fit with a check ring (6) and a support ring (9), the outer edge of the check ring (6) and the support ring (9) is tightly attached to the inner wall of the single-acting oil cylinder cavity, and the rear cover body (2) is press-fit on the rear end face of the installation shaft hole of the second wheel shaft (4), and the rear cover body (2) is provided with a hole in the middle part to communicate with the single-acting oil cylinder cavity; the second gear (10) is engaged with the partial outer edge of the front segment of the third wheel shaft (5) and is axially slidably installed, and when the left end of the second wheel shaft (4) and the check ring (6) are slid backward to the position and are tightly attached to the inner side of the rear cover body (2), the partial outer edge of the front segment of the second wheel shaft (4) is engaged with the outer edge of the first gear (7).

2. The hydraulic linear motor mechanism of claim 1, wherein, The spring (11) is sleeved on the outer edge of the rear end of the second wheel shaft (4), and the support ring (9) is sleeved on the spring (11).

3. The hydraulic linear motor mechanism of claim 1, wherein, The check ring (6) is press-fit on the paper pad (8) on the rear end face of the second wheel shaft (4).

4. The hydraulic linear motor mechanism of claim 1, wherein, The body shell (1) is in the form of a rectangular square plate structure, and the body shell (1) is provided with an axle seat (102) protruding in the middle of the cross section of the front and rear sides; the axle seat (102) is provided with a first shaft hole (103), a second shaft hole (104) and a third shaft hole (105) through the axle seat (102); wherein the rear end of the second shaft hole (104) is expanded to form a single-acting oil cylinder cavity (1041); wherein the first shaft hole (103) is located in the upper part of the vertical surface of the body shell (1), the third shaft hole (105) is located below the first shaft hole (103) on one side edge, and the second shaft hole (104) is located below the third shaft hole (105), that is, between the first shaft hole (103) and the second shaft hole (104).

5. The hydraulic linear motor mechanism of claim 1, wherein, The rear cover body (2) is in the form of a disc, the rear cover body (2) is provided with a rear cover hole (201) in the middle part, and at least three rear cover edge holes (202) are uniformly distributed on the edge of the rear cover body (2).

6. The hydraulic linear motor mechanism of claim 1, wherein, The first wheel shaft (3) is provided with a first shaft head (301), a first shaft rod (302), a first shaft connecting rod (303) and a first shaft rear connector (304) from front to rear, and the outer diameter of the first shaft head (301) is gradually increased; wherein the first shaft rear connector (304) is provided with a gear groove on the outer edge, and the first shaft head (301) is provided with a first shaft key groove (305) extending axially on the outer edge.

7. The hydraulic linear motor mechanism of claim 1, wherein, The second axle (4) is sequentially provided with a second axle head (401), a second axle gear ring (402) and a second axle rod (403) from front end to rear end; the second axle gear ring (402) is provided with a gear slot on the outer edge, and the outer diameter of the second axle gear ring (402) is greater than that of the second axle head (401) and the second axle rod (403); the second axle rod (403) is axially provided with a second axle tail middle hole (404) of blind hole structure in the middle of the rear end surface, and is provided with a second axle tail side hole (405) on the edge of the rear end surface; the second axle head (401) is provided with a second axle key groove (406) extending axially on the outer wall.

8. The hydraulic linear motor mechanism of claim 1, wherein, The third axle (5) is sequentially provided with a third axle head (501), a third axle gear ring (502), a third axle (503), a third axle rod front section (504), a third axle connecting rod (505) and a third axle rod rear section (506) from front end to rear end; the third axle gear ring (502) is provided with a gear slot on the outer edge; the outer diameter of the third axle gear ring (502) is greater than that of the third axle head (501), the third axle rod front section (504) and the third axle rod rear section (506), and the outer diameter of the third axle head (501), the third axle rod front section (504) and the third axle rod rear section (506) is greater than that of the third axle (503) and the third axle connecting rod (505); the third axle head (501) is provided with a third axle front middle hole (507) in the middle of the front end surface, and is provided with a third axle key groove (508) on the outer wall.

9. The hydraulic linear motor mechanism of claim 4, wherein, The first axle hole (103) is radially provided with a first deep oil groove (108) on the top wall; the third axle hole (105) is radially provided with a third deep oil groove (107) on the top wall; and the third axle hole (105) is radially provided with a side top hole (106) on the side wall.

10. The hydraulic linear motor mechanism of claim 4, wherein, The corner portions of the body shell (1) are respectively provided with external mounting holes (101), and the two external mounting holes (101) on opposite sides are respectively provided with taper pin holes (109).

Images