Heading machine hydraulic motor with long service life

By introducing a flow equalization plate and a rolling plate structure into the hydraulic motor, combined with a wear-resistant layer and a quick-installation mechanism, the wear problem caused by piston friction is solved, extending the service life of the hydraulic motor and improving installation efficiency.

CN223707816UActive Publication Date: 2025-12-23NINGBO YONGYUAN HYDRAULIC MOTOR CO LTD
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Patent Information

Application Number
CN202520432512.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2025-12-23
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

Traditional hydraulic motors suffer from friction and wear due to the reciprocating motion of the piston within the cylinder, which affects performance and lifespan, reducing the practicality of the device.

Method used

It adopts a flow equalization plate and rolling plate structure, combined with a wear-resistant layer and quick-installation mechanism to reduce friction and improve installation efficiency.

Benefits of technology

It reduces component wear, extends the service life of hydraulic motors, and improves the ease and stability of installation and disassembly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of hydraulic motors, and discloses a long-life hydraulic motor of a head sealing machine, which comprises a lower half shell, an upper half shell is arranged at the top of the lower half shell, the upper half shell is clamped with the lower half shell, an end cover is arranged on the left side of the lower half shell, the periphery of the outer wall of the end cover is in threaded connection with a first screw, and a second screw is arranged on the right side of the end cover. The end cover is in threaded connection with the lower half shell and the upper half shell through the first screws, an oil inlet is formed in the front side of the top of the end cover, an oil outlet is formed in the rear side of the top of the end cover, and a flow equalizing disc is rotationally connected to the left side of the inner wall of the lower half shell. According to the utility model, the oil is homogenized through the flow equalizing disc, so that the oil transmission is more balanced, a foundation is laid for stable operation, the friction during the movement of the pump plug is greatly reduced and the service life is prolonged through the design of the roller and the wear-resistant layer, the clamping transmission of the outer fluted disc and the inner fluted disc is accurate and efficient, the stability of power output is ensured, and the service life of the device is prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic motor technical field especially relates to long life head machine hydraulic motor. BACKGROUND

[0002] Hydraulic motor is a kind of hydraulic element that converts hydraulic energy into mechanical energy, is according to the input with certain pressure and flow rate hydraulic oil, forms torque and rotational speed in the motor inside, thereby outputting rotary motion, and hydraulic motor is usually used in the mechanical system needing rotary motion.

[0003] The conventional driving mode mainly uses gear type hydraulic motor, is mainly composed of shell, driving gear and driven gear, shaft, end cover and inlet and outlet oil port, when high-pressure hydraulic oil enters the hydraulic motor from the oil inlet, acts on the tooth surface of driving gear, generates hydraulic pressure, since driving gear and driven gear are mutually engaged, hydraulic pressure drives driving gear to rotate in a certain direction, driving gear drives driven gear to rotate, in the process of gear engagement, the hydraulic oil between teeth flows from high-pressure cavity to low-pressure cavity, and finally is discharged from the oil outlet, but in actual use process, since the leakage between gears is relatively large, volumetric efficiency is not high, and energy loss is large, and the prior art adopts plunger type hydraulic motor, when high-pressure oil enters the plunger cavity of cylinder body through the flow distribution disc, oil hydraulic pressure acts on the bottom of plunger, since plunger and cylinder body exist cooperation, hydraulic pressure will drive plunger to stretch out outward, a plurality of plungers are sequentially subjected to the action of high-pressure oil according to certain order, and the thrust generated is transmitted to output shaft through cylinder body, to drive output shaft to rotate, since plunger does reciprocating motion in cylinder body, friction will be generated between the top end of plunger and shell, and the friction will cause component wear, affect the performance and service life of hydraulic motor, and reduce the practicability of the device. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides long life head machine hydraulic motor, aims at improving the practicability of the device in the prior art due to reciprocating motion of plunger in cylinder body, friction will be generated between the top end of plunger and shell, the friction will cause component wear, affect the performance and service life of hydraulic motor.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: long life head machine hydraulic motor, including lower half shell, the top of lower half shell is provided with upper half shell, the upper half shell with lower half shell is engaged, the left side of lower half shell is provided with end cover, the outer wall all around of end cover is connected with screw no.

[0006] As a further description of the above technical solution:

[0007] The quick mounting mechanism comprises two fixed plates, two fixed plates are fixedly connected to the outer wall of the upper half shell on the front and back sides, the outer wall of the lower half shell is fixedly connected with a fixed block on the front and back sides, the bottom of two fixed plates is fixedly connected with an insertion plate, the top of two fixed blocks is provided with an insertion slot, two insertion plates are engaged with the corresponding insertion slot, the inner wall of two fixed blocks is provided with a reserved slot, the inner wall of two reserved slots is slidably connected with an insertion rod, two insertion rods penetrate through the corresponding insertion plate, the outer wall of two insertion rods is fixedly connected with a limiting ring, the outer wall right side of two limiting rings is fixedly connected with a spring, and the right end of two springs is fixedly connected with the corresponding reserved slot.

[0008] As a further description of the above technical solution:

[0009] The bottom of the lower half shell is fixedly connected with a supporting leg, and the bottom of the supporting leg is fixedly connected with a mounting plate.

[0010] As a further description of the above technical solution:

[0011] The top of the mounting plate is provided with a threaded hole around, and the inner wall of a plurality of threaded holes is threadedly connected with a bolt.

[0012] As a further description of the above technical solution:

[0013] The outer wall front side of the upper half shell is provided with an information board, screw two are threadedly connected around the outer wall of the information board, and the information board is threadedly connected with the upper half shell through the screw two.

[0014] As a further description of the above technical solution:

[0015] The right end of each of the two inserting rods penetrates through the corresponding fixing block and is rotationally connected with a pull ring, and the outer wall of each of the two pull rings is provided with anti-skid treatment.

[0016] As a further description of the above technical solution:

[0017] The outer wall left side of the end cover is fixedly connected with a temperature detector, and the outer wall left side of the temperature detector is fixedly connected with a data transmitter.

[0018] As a further description of the above technical solution:

[0019] The outer wall left side of each of the plurality of screw one is provided with a cross slot, and the surface of each of the plurality of screw one is provided with smooth treatment.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1. In the utility model, the oil liquid is homogenized by the current sharing disc, the oil liquid transmission is more balanced, the foundation for stable operation is laid, the design of the roller and the wear-resistant layer greatly reduces the friction when the pump plug moves, significantly reduces the wear, enhances the part durability, prolongs the service life, the clamping transmission of the outer tooth disc and the inner tooth disc is accurate and efficient, the stability of the power output is ensured, and the service life of the device is prolonged.

[0022] 2. In the utility model, the preliminary clamping positioning of the plug plate and the plug groove is simple and fast in operation, the installation efficiency is improved, the plug rod and the spring are matched under the control of the pull ring, the fixing and unlocking are flexible and convenient, the connection is stable and reliable, the upper and lower half shells can be effectively prevented from loosening in use, the normal operation of the equipment is ensured, the device is also convenient to disassemble, and the maintenance time and labor cost are saved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A perspective view of the long-life head machine hydraulic motor is provided for the utility model;

[0024] Figure 2 A partial structure split view of the long-life head machine hydraulic motor is provided for the utility model;

[0025] Figure 3 A partial structure schematic view of the long-life head machine hydraulic motor is provided for the utility model;

[0026] Figure 4 A partial structure schematic view of the long-life head machine hydraulic motor is provided for the utility model; Figure 3 An enlarged view of A of the long-life head machine hydraulic motor is provided for the utility model;

[0027] Figure 5 The quick mounting mechanism of the long-life head machine hydraulic motor is shown in the figure;

[0028] Figure 6 The temperature detector of the long-life head machine hydraulic motor is shown in the figure.

[0029] Legend:

[0030] 1, the lower half shell; 2, quick mounting mechanism; 201, fixed plate; 202, fixed block; 203, plugboard; 204, slot; 205, reserved slot; 206, plug rod; 207, limit ring; 208, spring; 3, the upper half shell; 4, end cover; 5, screw one; 6, oil inlet; 7, oil outlet; 8, flow equalizing disc; 9, rolling disc; 10, pump plug; 11, roller; 12, wear-resistant layer; 13, outer gear disc; 14, inner gear disc; 15, output shaft; 16, bearing; 17, support leg; 18, mounting plate; 19, threaded hole; 20, bolt; 21, information board; 22, screw two; 23, pull ring; 24, temperature detector; 25, data transmitter; 26, cross slot. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0032] Reference Figure 1 , Figure 3 and Figure 4The utility model provides a kind of hydraulic motor of long-life head machine of an embodiment provided by the utility model: lower half shell 1, as support and containing structure, bearing internal component, the top of lower half shell 1 is provided with upper half shell 3, upper half shell 3 is engaged with lower half shell 1, and closed working space is formed jointly, protects internal component, the left side of lower half shell 1 is provided with end cap 4, the outer wall of end cap 4 is all screw connection with screw one 5 around, end cap 4 is screw connected with lower half shell 1 and upper half shell 3 by screw one 5, it plays the role of sealing and fixed, the top front side of end cap 4 is equipped with oil inlet 6, for inputting hydraulic oil, the top rear side of end cap 4 is equipped with oil outlet 7, to discharge hydraulic oil after work, the inner wall left side of lower half shell 1 is rotatably connected with flow equalizing disc 8, and hydraulic oil is evenly distributed, the outer wall of flow equalizing disc 8 is rotatably connected with rolling disc 9, and output shaft 15 is rotated, the outer wall of rolling disc 9 is all slidingly connected with pump plug 10 around, the inner wall of multiple pump plugs 10 is rotatably connected with idler 11, and friction is reduced, the outer wall of multiple idlers 11 is all fixedly connected with wear layer 12, and wear resistance effect is played, the outer wall right side of rolling disc 9 is fixedly connected with outer gear disc 13, the inner wall middle part of lower half shell 1 is rotatably connected with inner gear disc 14, inner gear disc 14 is engaged with outer gear disc 13, the outer wall right side of inner gear disc 14 is fixedly connected with output shaft 15, the above-mentioned components work cooperatively, realize the conversion of hydraulic energy to mechanical energy and power output, the inner wall right side of lower half shell 1 is fixedly connected with bearing 16, bearing 16 is rotatably connected with output shaft 15, and stable support and rotation guarantee are provided for output shaft 15, the outer wall front and rear side of upper half shell 3 is all provided with quick -mounting mechanism 2, and quick -mounting mechanism 2 is used for quickly connecting lower half shell 1 with upper half shell 3, and it is convenient to install and disassemble, the bottom of lower half shell 1 is fixedly connected with support leg 17, the bottom of support leg 17 is fixedly connected with mounting plate 18, the top of mounting plate 18 is all equipped with threaded hole 19 around, the inner wall of multiple threaded holes 19 is all screw connection with bolt 20, for stably installing entire hydraulic motor on working position;

[0033] Specifically, hydraulic oil enters from the oil inlet 6 on the top front side of the end cover 4, and the entering hydraulic oil first contacts the flow equalizing disc 8, which plays a role in uniformly distributing the oil. The oil pushes the rolling disc 9 to rotate. Since the inner wall of the pump plug 10 slidingly connected around the outer wall of the rolling disc 9 is rotationally connected with the rollers 11, and the outer wall of the rollers 11 has a wear-resistant layer 12, this enables the pump plug 10 to reduce wear when reciprocating under the driving of the rolling disc 9. The outer tooth disc 13 on the right side of the outer wall of the rolling disc 9 rotates with the rolling disc 9. Since the outer tooth disc 13 is engaged with the inner tooth disc 14 rotationally connected to the middle of the inner wall of the lower half shell 1, the outer tooth disc 13 drives the inner tooth disc 14 to rotate, and the rotation of the inner tooth disc 14 drives the output shaft 15 fixedly connected thereto to rotate, thereby outputting power. The output shaft 15 is supported and stably rotated by the bearing 16 on the right side of the inner wall of the lower half shell 1. The support legs 17 are used to support the entire hydraulic motor and transfer the weight of the hydraulic motor to the mounting plate 18. The mounting plate 18 is connected to the mounting base through the threaded holes 19 and bolts 20 provided around the top.

[0034] With reference to Figure 1 , Figure 2 and Figure 5 , the quick mounting mechanism 2 includes two fixed plates 201 fixedly connected to the front and rear sides of the outer wall of the upper half shell 3 for connecting and fixing the upper half shell 3. The outer wall of the lower half shell 1 is fixedly connected with a fixed block 202 on the front and rear sides, which plays a role in supporting and fixing. The bottom of each of the two fixed plates 201 is fixedly connected with an insertion plate 203 for preliminary positioning in cooperation with the insertion groove 204. The top of each of the two fixed blocks 202 is provided with an insertion groove 204, which is engaged with the insertion plate 203 for preliminary fixing. The inner wall of each of the two fixed blocks 202 is provided with a reserved slot 205, which provides space for the sliding of the insertion rod 206. The inner wall of each of the two reserved slots 205 is slidingly connected with the insertion rod 206, which penetrates the insertion plate 203 to achieve further fixing. Each of the two insertion rods 206 penetrates the corresponding insertion plate 203 to enhance the stability of the connection. The outer wall of each of the two insertion rods 206 is fixedly connected with a limiting ring 207, which limits the movement range of the insertion rod 206. The outer wall right side of each of the two limiting rings 207 is fixedly connected with a spring 208, which provides elastic force for the resetting of the insertion rod 206. The right end of each of the two springs 208 is fixedly connected with the corresponding reserved slot 205 to ensure the stability of the spring 208. The right end of each of the two insertion rods 206 penetrates the corresponding fixed block 202 and is rotationally connected with a pull ring 23, which facilitates the operation of the insertion rod 206. The outer wall of each of the two pull rings 23 is provided with anti-slip treatment to prevent slipping during operation.

[0035] Specifically, during the installation of the upper shell 3 and the lower shell 1, the insert plate 203 at the bottom of the fixing plate 201 on the front and rear sides of the outer wall of the upper shell 3 is aligned with the slot 204 at the top of the fixing block 202 on the front and rear sides of the outer wall of the lower shell 1 and inserted to achieve initial engagement and positioning. After the insert plate 203 is inserted into the slot 204, the insert rod 206 is pulled to the right to compress the spring 208, causing the insert rod 206 to slide within the reserved slot 205. After the insert plate 203 is fully inserted into the slot 204, the insert rod 206 is released. Under the elastic force of the spring 208, the insert rod 206... 06 Slide to the left and pass through the insert plate 203. At this time, the insert rod 206, the insert plate 203 and the slot 204 cooperate with each other to achieve further fixation and locking. When disassembly is required, pull the insert rod 206 to the right again to disengage it from the insert plate 203, so that the upper shell 3 can be separated from the lower shell 1. When installation or disassembly is required, the operator can operate the insert rod 206 by holding the pull ring 23. The anti-slip treatment on the outer wall of the pull ring 23 can increase the friction, making it easier and more stable for the operator to pull the pull ring 23, and less likely to slip.

[0036] Reference Figure 1 , Figure 2 and Figure 6 An information plate 21 is provided on the front side of the outer wall of the upper shell 3 for marking product-related information. Screws 22 are threaded around the outer wall of the information plate 21, and the information plate 21 is threaded to the upper shell 3 through the screws 22 to achieve a stable installation. A temperature detector 24 is fixedly connected to the left side of the outer wall of the end cover 4 for detecting the operating temperature of the equipment. A data transmitter 25 is fixedly connected to the left side of the outer wall of the temperature detector 24 to transmit the detection data. A cross groove 26 is opened on the left side of the outer wall of multiple screws 5 to facilitate tool operation. The surfaces of multiple screws 5 are all smoothed to reduce resistance and wear during installation and disassembly.

[0037] Specifically, the information plate 21 is threaded to the upper shell 3 via screw 22 and is used to mark relevant information of the hydraulic motor. The temperature detector 24 on the left side of the outer wall of the end cover 4 is used to detect the temperature of the hydraulic motor when it is working. The data transmitter 25 transmits the detected temperature data to relevant equipment or control system for temperature monitoring and processing. The cross groove 26 on the left side of the outer wall of screw 5 facilitates installation and disassembly using a screwdriver. The smooth surface of screw 5 can reduce resistance during installation and disassembly, and also reduce surface wear and corrosion.

[0038] Working principle: Before using the device, hydraulic oil is first input through the oil inlet 6 on the front side of the top of the end cover 4, and first contacts the flow equalization plate 8. The flow equalization plate 8 homogenizes the oil to ensure that the oil is transmitted in a balanced manner. Under the action of the flow equalization plate 8, the oil pushes the rolling plate 9 to rotate. The pump plug 10 is slidably connected to the outer wall of the rolling plate 9, and the rollers 11 on the inner wall of the rolling plate 9 are provided with a wear-resistant layer 12. When the rolling plate 9 rotates, it drives the pump plug 10 to reciprocate. The rotational characteristics of the rollers 11 and the presence of the wear-resistant layer 12 significantly reduce the wear of the pump plug 10 during the movement. The durability and working stability of the components are enhanced. As the rolling disk 9 rotates, the outer gear disk 13 on the right side of its outer wall rotates synchronously. Since the outer gear disk 13 and the inner gear disk 14 rotatably connected to the middle of the inner wall of the lower half shell 1 are engaged with each other, the rotation of the outer gear disk 13 drives the inner gear disk 14 to rotate. The rotation of the inner gear disk 14 directly drives the output shaft 15 fixedly connected to it to rotate, thereby realizing power output. During operation, the output shaft 15 is supported by the bearing 16 on the right side of the inner wall of the lower half shell 1, which effectively ensures the stable and accurate rotation of the output shaft 15 and reduces shaking and deviation.

[0039] Furthermore, when installing the upper shell 3 and the lower shell 1, the operator precisely aligns the insert plate 203 at the bottom of the fixing plate 201 on the front and rear sides of the outer wall of the upper shell 3 with the slot 204 at the top of the fixing block 202 on the front and rear sides of the outer wall of the lower shell 1 and inserts it to achieve initial engagement and positioning. After the insert plate 203 begins to insert into the slot 204, the operator pulls the pull ring 23 to move the insert rod 206 to the right, thereby compressing the spring 208 and causing the insert rod 206 to slide to the right within the reserved slot 205. Once the insert plate 203 is fully inserted... When the slot 204 is engaged, the pull ring 23 is released, the spring force of the spring 208 is released, and the insertion rod 206 slides to the left, thus penetrating the insertion plate 203. In this way, the insertion rod 206, the insertion plate 203 and the slot 204 work together tightly to achieve a more stable fixation and locking, ensuring that the upper shell 3 and the lower shell 1 are tightly connected. When disassembly is required, the operator pulls the pull ring 23 to the right again, which moves the insertion rod 206 to the right and disengages it from the insertion plate 203, releasing the lock and allowing the upper shell 3 to be easily separated from the lower shell 1.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A long-life hydraulic motor for a head-sealing machine, comprising a lower housing (1), characterized in that: The lower shell (1) is topped with an upper shell (3), which engages with the lower shell (1). An end cap (4) is located on the left side of the lower shell (1). Screws (5) are threaded around the outer wall of the end cap (4). The end cap (4) is threaded to the lower shell (1) and the upper shell (3) via the screws (5). An oil inlet (6) is located on the front top of the end cap (4), and an oil outlet (7) is located on the rear top of the end cap (4). A flow equalization plate (8) is rotatably connected to the left inner wall of the lower shell (1). A rolling plate (9) is rotatably connected to the outer wall of the flow equalization plate (8). Pump plugs (10) are slidably connected around the outer wall of the rolling plate (9). Multiple pump plugs... The inner wall of (10) is rotatably connected to rollers (11), and the outer wall of the multiple rollers (11) is fixedly connected to a wear-resistant layer (12). The outer right side of the outer wall of the rolling disk (9) is fixedly connected to an outer gear disk (13). The middle of the inner wall of the lower half shell (1) is rotatably connected to an inner gear disk (14). The inner gear disk (14) engages with the outer gear disk (13). The outer right side of the inner gear disk (14) is fixedly connected to an output shaft (15). The inner right side of the inner wall of the lower half shell (1) is fixedly connected to a bearing (16). The bearing (16) is rotatably connected to the output shaft (15). The front and rear sides of the outer wall of the upper half shell (3) are provided with quick-connect mechanisms (2). The quick-connect mechanisms (2) are used to quickly connect the lower half shell (1) and the upper half shell (3).

2. The long-life hydraulic motor for end capping machines according to claim 1, characterized in that: The quick-assembly mechanism (2) includes two fixing plates (201), which are respectively fixedly connected to the front and rear sides of the outer wall of the upper shell (3). Fixing blocks (202) are fixedly connected to the front and rear sides of the outer wall of the lower shell (1). Insert plates (203) are fixedly connected to the bottom of each of the two fixing plates (201). Slots (204) are provided on the top of each of the two fixing blocks (202). The two insert plates (203) engage with their corresponding slots (204). The inner wall of the fixing block (202) is provided with a reserved groove (205). The inner walls of the two reserved grooves (205) are slidably connected with a plug rod (206). The two plug rods (206) pass through the corresponding plug plate (203). The outer walls of the two plug rods (206) are fixedly connected with a limit ring (207). The right side of the outer wall of the two limit rings (207) is fixedly connected with a spring (208). The right end of the two springs (208) is fixedly connected to the corresponding reserved groove (205).

3. The long-life hydraulic motor for end capping machines according to claim 1, characterized in that: The bottom of the lower shell (1) is fixedly connected to a support leg (17), and the bottom of the support leg (17) is fixedly connected to a mounting plate (18).

4. The long-life hydraulic motor for end capping machines according to claim 3, characterized in that: The mounting plate (18) has threaded holes (19) around its top perimeter, and bolts (20) are threaded onto the inner walls of the multiple threaded holes (19).

5. The long-life hydraulic motor for end capping machines according to claim 1, characterized in that: An information plate (21) is provided on the front side of the outer wall of the upper shell (3). Screws (22) are threaded around the outer wall of the information plate (21). The information plate (21) is threaded to the upper shell (3) through the screws (22).

6. The long-life hydraulic motor for end capping machines according to claim 2, characterized in that: The right ends of the two insertion rods (206) pass through the corresponding fixing blocks (202) and are rotatably connected to pull rings (23). The outer walls of the two pull rings (23) are treated with anti-slip material.

7. The long-life hydraulic motor for end capping machines according to claim 1, characterized in that: A temperature detector (24) is fixedly connected to the left side of the outer wall of the end cap (4), and a data transmitter (25) is fixedly connected to the left side of the outer wall of the temperature detector (24).

8. The long-life hydraulic motor for end capping machines according to claim 1, characterized in that: Each of the screws (5) has a cross groove (26) on the left side of its outer wall, and the surfaces of the screws (5) are all smoothed.