A road oil system for the cutting reducer of a combined tunneling and bolting machine

Abstract

The present invention discloses an oil circuit system for a cutting and anchoring integrated cutting reducer, which includes a cutting reducer body. An input shaft is provided on the cutting reducer body, and a gear pump is connected to the input shaft. The system also includes a main frame and an intermediate frame provided on the cutting reducer body. A first oil inlet hole and a first oil return hole are formed on the main frame, and a second oil inlet hole and a second oil return hole are formed on the intermediate frame. The main frame and the intermediate frame are connected by a connecting pin. An oil return oil circuit is connected between the first oil return hole and the second oil return hole, and an oil inlet oil circuit is connected between the first oil inlet hole and the second oil inlet hole. The oil inlet oil circuit extends to each point that needs to be lubricated. A drain pipe is connected between the gear pump and the oil return oil circuit, and a suction pipe is connected to the gear pump. The oil circuit system for the cutting and anchoring integrated cutting reducer of the present invention has the advantages of reasonable structural setting, good lubrication effect, and extended service life of the reducer.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical equipment, and in particular relates to an oil circuit system of a cutting reducer for integrated drilling and anchoring. Background Art

[0002] The anchoring and digging unit is a device that integrates exploration, digging, support and transportation. It realizes the synchronous operation of digging and anchoring, improves the speed of equipment tunneling, solves the problem of unbalanced mining and digging that has long plagued coal mines, and is the development direction of safe and efficient tunneling of coal tunnels. The reducer is an important transmission component of the cutting part. Its performance plays a vital role in the efficiency of coal mining and the safety and stability of the anchoring and digging unit.

[0003] The integrated cutting and anchoring reducer uses a primary cylindrical + primary bevel gear + secondary planetary mechanism to transmit power. It has many heat-generating components and generates a lot of heat. If the lubrication structure is not set properly, the temperature of the lubricating oil will increase, aggravating the wear of gears and bearings and reducing the life of the reducer. Summary of the invention

[0004] The purpose of the present invention is to provide an oil circuit system for a cutting reducer with integrated anchoring and digging, so as to solve the above-mentioned problems existing in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The invention relates to an oil circuit system of an integrated cutting and anchoring cutting reducer, comprising a cutting reducer body, the cutting reducer body being provided with an input shaft, the input shaft being connected to a gear pump, and also comprising a main frame and an intermediate frame arranged on the cutting reducer body, the main frame being provided with a first oil inlet hole and a first oil return hole, the intermediate frame being provided with a second oil inlet hole and a second oil return hole, the main frame and the intermediate frame being connected by a connecting pin, an oil return oil circuit being connected between the first oil return hole and the second oil return hole, an oil inlet oil circuit being connected between the first oil inlet hole and the second oil inlet hole, the oil inlet oil circuit extending to each point requiring lubrication, an oil drain pipe being connected between the gear pump and the oil return oil circuit, an oil extraction pipe being connected to the gear pump, an oil pool being provided on the intermediate frame, the oil extraction pipe extending into the oil pool, the first oil return hole being connected to a cooler and an oil tank in sequence to the outside, and the oil tank being communicated with the first oil inlet hole.

[0007] The working process and principle of the above structure are as follows:

[0008] When the cutting speed reducer body is running, the input shaft drives the gear pump to operate. Through the drain pipe, the oil return circuit, and the cooler, the lubricating oil is sent back to the oil tank. At the same time, the oil tank injects the lubricating oil from the first oil inlet hole on the main frame and distributes the injected lubricating oil to each point through the oil inlet circuit of the lubricating oil. This way of splash lubrication plus circulating forced lubrication can timely take away the heat generated inside the speed reducer and improve the service life of the speed reducer. At the same time, the oil in the oil sump is pumped through the suction pipe and the lubricating oil is discharged to the oil return circuit of the intermediate frame through the drain pipe. After the lubricating oil enters the main frame from the oil return circuit of the intermediate frame, it flows out through the internal oil circuit of the main frame and flows into the oil tank after being cooled by the cooler.

[0009] Further, an O-ring is connected between the first oil inlet hole and the second oil inlet hole, and an O-ring is connected between the first oil return hole and the second oil return hole.

[0010] The two O-rings respectively prevent the lubricating oil from leaking from the main frame end and the intermediate frame end.

[0011] Further, the points include the input gear pair and bearings, the input shaft bearings, and the bevel gear pair and bearings.

[0012] By lubricating the input gear pair and bearings, the input bearings, and the bevel gear pair and bearings, the lubricating oil lubricates each position of the cutting speed reducer body, ensuring the operation efficiency. At the same time, the cooling efficiency is improved, the temperature of the lubricating oil is prevented from being too high, and the service life of the speed reducer is prolonged.

[0013] Further, a plug is provided at the intersection of the oil inlet circuit and the oil return circuit.

[0014] The setting of the plug mainly realizes the isolation function of the oil inlet circuit and the oil return circuit.

[0015] Further, a number of process holes are opened on the main frame and the intermediate frame. Internal threads are opened in the process holes, and plugs are provided in the process holes.

[0016] The setting of the process holes is mainly for the convenience of machining the oil circuits of the main frame and the intermediate frame. Through the setting of the plugs, the process holes are blocked to prevent oil leakage.

[0017] Furthermore, the main frame is provided with a first hydraulic oil inlet and a second hydraulic oil inlet for controlling the extension and retraction of the left hydraulic cylinder, and a third hydraulic oil inlet and a fourth hydraulic oil inlet for controlling the extension and retraction of the right hydraulic cylinder. The main frame is provided with a support ear on the side close to the middle frame, and the cutting reducer body is provided with a left-side first-level planetary carrier and a right-side first-level planetary carrier, and the left-side first-level planetary carrier and the right-side first-level planetary carrier are respectively arranged on both sides of the middle frame, and the first hydraulic oil inlet, the second hydraulic oil inlet, the third hydraulic oil inlet and the fourth hydraulic oil inlet are respectively connected with a first hydraulic oil circuit, a second hydraulic oil circuit, a third hydraulic oil circuit and a fourth hydraulic oil circuit, and the first hydraulic oil circuit and the second hydraulic oil circuit respectively pass through the support ear, the middle frame and the left-side first-level planetary carrier in sequence, and the third hydraulic oil circuit and the fourth hydraulic oil circuit respectively pass through the support ear, the middle frame and the right-side first-level planetary carrier in sequence, and the left-side first-level planetary carrier and the right-side first-level planetary carrier are respectively connected with a hydraulic oil pipe, and each of the hydraulic oil pipes is connected with a hydraulic cylinder.

[0018] The hydraulic oil is injected into the main frame from the first hydraulic oil inlet, and is merged into the middle frame through the internal oil circuit of the support ear, and flows into the left-side primary planetary carrier through the internal oil circuit of the middle frame. The left-side primary planetary carrier is also connected to the hydraulic oil pipe, that is, the first hydraulic oil circuit is connected to the hydraulic oil pipe, and the hydraulic oil flows into the hydraulic cylinder through the oil circuit outlet of the hydraulic oil pipe to push the piston to extend; when the second hydraulic oil inlet of the main frame is filled with oil, the parts of the second hydraulic oil circuit flowing through the hydraulic oil circuit are the same as those of the first hydraulic oil circuit, but the two are different from each other, and the hydraulic oil finally flows out from another oil circuit outlet of the hydraulic oil pipe to push the hydraulic cylinder to retract; the four hydraulic oil circuits on the left and right ends of the cutting reducer body are different from each other, and the extension and retraction of the hydraulic cylinder on one side can be controlled separately.

[0019] Furthermore, a water inlet and a plurality of water outlets are provided on the main frame, the water inlet is connected to a plurality of water channels, and the water channels are connected to the water outlets.

[0020] A water inlet and a water channel are opened on the main frame, which are mainly used for dust removal.

[0021] Beneficial effect: When the cutting reducer body of the present invention is running, the input shaft drives the gear pump to run, and the lubricating oil is returned to the oil tank through the oil drain pipe, the return oil circuit and the cooler. At the same time, the oil tank injects the lubricating oil from the first oil inlet hole on the main frame, and distributes the injected lubricating oil to various points through the lubricating oil inlet circuit. This splash lubrication plus circulating forced lubrication method can timely take away the heat generated inside the reducer, thereby increasing the service life of the reducer; and the original hydraulic oil circuit of the integrated anchoring and cutting reducer can often only realize the simultaneous extension and retraction of the hydraulic cylinders at both ends, and cannot separately control the extension and retraction of the hydraulic cylinders at both ends. The present invention realizes the separate control of the extension and retraction of the hydraulic cylinder on one side through four different hydraulic oil circuits. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the external structure of the cutting speed reducer in the present invention;

[0023] Figure 2 This is a schematic diagram of the external structure of the cutting speed reducer from another angle in the present invention;

[0024] Figure 3 This is a schematic diagram of the forced lubricating oil path structure in the present invention;

[0025] Figure 4 This is a schematic diagram of the hydraulic oil path structure of the intermediate frame in the present invention;

[0026] Figure 5 This is a schematic diagram of the hydraulic oil path structure of the left - hand first - stage planetary carrier in the present invention;

[0027] Figure 6 This is a schematic diagram of the hydraulic oil path structure of the right - hand first - stage planetary carrier in the present invention;

[0028] Figure 7 This is a schematic diagram of the connection structure between the first - stage planetary carrier and the hydraulic oil tank in the present invention;

[0029] Figure 8 This is a schematic diagram of the water path structure of the speed reducer in the present invention.

[0030] Reference numerals: 1, cutting speed reducer body; 2, input shaft; 3, gear pump; 4, main frame; 5, intermediate frame; 6, first oil inlet hole; 7, first oil return hole; 8, second oil inlet hole; 9, second oil return hole; 10, oil inlet oil path; 11, oil return oil path; 12, connecting pin; 13, point position; 14, drain pipe; 15, suction pipe; 16, oil sump; 17, O - ring; 18, plug; 19, process hole; 20, first hydraulic oil inlet; 21, second hydraulic oil inlet; 23, third hydraulic oil inlet; 24, fourth hydraulic oil inlet; 25, ear; 26, left - hand first - stage planetary carrier; 27, right - hand first - stage planetary carrier; 28, first hydraulic oil path; 29, second hydraulic oil path; 30, third hydraulic oil path; 31, fourth hydraulic oil path; 32, hydraulic oil pipe; 33, hydraulic cylinder; 34, water inlet; 35, water outlet; 36, water path. Detailed implementation manners

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in combination with the descriptions of the accompanying drawings and embodiments or the prior art. Obviously, the following descriptions of the structures of the accompanying drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but do not constitute a limitation to the present invention.

[0032] Embodiment:

[0033] As Figures 1-7 shown, this embodiment provides an oil circuit system for a cutting and anchoring integrated cutting reducer, including a cutting reducer body 1, an input shaft 2 is arranged on the cutting reducer body 1, a gear pump 3 is connected to the input shaft 2, and it further includes a main frame 4 and an intermediate frame 5 arranged on the cutting reducer body 1. A first oil inlet hole 6 and a first oil return hole 7 are opened on the main frame 4, a second oil inlet hole 8 and a second oil return hole 9 are opened on the intermediate frame 5. The main frame 4 and the intermediate frame 5 are connected by a connecting pin 12. A return oil circuit 11 is connected between the first oil return hole 7 and the second oil return hole 9, and an inlet oil circuit 10 is connected between the first oil inlet hole 6 and the second oil inlet hole 8. The inlet oil circuit 10 extends to each lubrication point 13. A drain pipe 14 is connected between the gear pump 3 and the return oil circuit 11, the gear pump 3 is connected with a suction pipe 15, an oil sump 16 is arranged on the intermediate frame 5, and the suction pipe 15 extends into the oil sump 16. The first oil return hole 7 is sequentially connected to an external cooler and an oil tank, and the oil tank is communicated with the first oil inlet hole 6.

[0034] The working process and principle of the above structure are as follows:

[0035] When the cutting reducer body 1 operates, the input shaft 2 drives the gear pump 3 to run. The lubricating oil is sent back to the oil tank through the drain pipe 14, the return oil circuit 11, and the cooler. At the same time, the oil tank injects the lubricating oil from the first oil inlet hole 6 on the main frame 4, and distributes the injected lubricating oil to each point 13 through the inlet oil circuit 10 of the lubricating oil. This way of splash lubrication plus circulating forced lubrication can timely take away the heat generated inside the reducer and improve the service life of the reducer. At the same time, the oil sump 16 is pumped through the suction pipe 15, and the lubricating oil is discharged to the return oil circuit 11 of the intermediate frame 5 through the drain pipe 14. After the lubricating oil enters the main frame 4 from the return oil circuit 11 of the intermediate frame 5, it flows out through the internal oil circuit of the main frame 4 and flows into the oil tank after being cooled by the cooler.

[0036] In another embodiment of the present invention, as Figure 3As shown, an O-ring 17 is connected between the first oil inlet hole 6 and the second oil inlet hole 8, and an O-ring 17 is connected between the first oil return hole 7 and the second oil return hole 9.

[0037] The two O-rings 17 respectively prevent lubricating oil from leaking from the main frame 4 end and the intermediate frame 5 end.

[0038] In another embodiment of the present invention, as Figure 3 shown, the point 13 includes an input gear pair and bearings, bearings of the input shaft 2, and a bevel gear pair and bearings.

[0039] By lubricating the input gear pair and bearings, bearings of the input shaft 2, and the bevel gear pair and bearings, lubricating oil lubricates each position of the cutting speed reducer body 1, ensuring the operation efficiency, improving the cooling efficiency at the same time, preventing the temperature of the lubricating oil from being too high, and prolonging the service life of the speed reducer.

[0040] In another embodiment of the present invention, as Figure 3 shown, a plug 18 is provided at the intersection of the oil inlet circuit 10 and the oil return circuit 11.

[0041] The setting of the plug 18 mainly realizes the isolation function between the oil inlet circuit 10 and the oil return circuit 11.

[0042] In another embodiment of the present invention, as Figure 3 shown, a number of process holes 19 are provided on the main frame 4 and the intermediate frame 5. Internal threads are provided in the process holes 19, and plugs 18 are provided in the process holes 19.

[0043] The setting of the process holes 19 is mainly for facilitating the machining of the oil circuits on the main frame 4 and the intermediate frame 5. By setting the plugs 18, the process holes 19 are blocked to prevent oil leakage.

[0044] In another embodiment of the present invention, as Figures 1-7As shown, the main frame 4 is provided with a first hydraulic oil inlet 20 and a second hydraulic oil inlet 21 for controlling the extension and retraction of the left end hydraulic cylinder 33, and a third hydraulic oil inlet 23 and a fourth hydraulic oil inlet 24 for controlling the extension and retraction of the right end hydraulic cylinder 33. The main frame 4 is provided with a support ear 25 on the side close to the middle frame 5. The cutting reducer body 1 is provided with a left primary planetary frame 26 and a right primary planetary frame 27. The left primary planetary frame 26 and the right primary planetary frame 27 are respectively arranged on both sides of the middle frame 5. The first hydraulic oil inlet 20, the second hydraulic oil inlet 21, the third hydraulic oil inlet 23 The first hydraulic oil circuit 28, the second hydraulic oil circuit 29, the third hydraulic oil circuit 30 and the fourth hydraulic oil circuit 31 are respectively connected to the fourth hydraulic oil inlet 24. The first hydraulic oil circuit 28 and the second hydraulic oil circuit 29 pass through the support ear 25, the middle frame 5 and the left primary planetary carrier 26 in sequence, respectively. The third hydraulic oil circuit 30 and the fourth hydraulic oil circuit 31 pass through the support ear 25, the middle frame 5 and the right primary planetary carrier 27 in sequence, respectively. The left primary planetary carrier 26 and the right primary planetary carrier 27 are respectively connected to a hydraulic oil pipe 32, and each hydraulic oil pipe 32 is connected to a hydraulic cylinder 33.

[0045] The hydraulic oil is injected into the main frame 4 from the first hydraulic oil inlet 20, and is merged into the middle frame 5 through the internal oil circuit of the support ear 25, and flows into the left primary planetary carrier 26 through the internal oil circuit of the middle frame 5. The left primary planetary carrier 26 is connected to the hydraulic oil pipe 32 at the same time, that is, the first hydraulic oil circuit 28 is connected to the hydraulic oil pipe 32, and the hydraulic oil flows into the hydraulic cylinder 33 through the oil circuit outlet of the hydraulic oil pipe 32, pushing the piston to extend; when the second hydraulic oil inlet 21 of the main frame 4 is filled with oil, the parts of the second hydraulic oil circuit 29 through which the hydraulic oil flows are the same as those of the first hydraulic oil circuit 28, but the two are different from each other, and the hydraulic oil finally flows out from the other oil circuit outlet of the hydraulic oil pipe 32, pushing the hydraulic cylinder 33 to retract; the four hydraulic oil circuits on the left and right ends of the cutting reducer body 1 are different from each other, and the extension and retraction of the hydraulic cylinder 33 on one side can be controlled separately.

[0046] In another embodiment of the present invention, Figure 8 As shown, a water inlet 34 and a plurality of water outlets 35 are provided on the main frame 4 . The water inlet 34 is connected to a plurality of water channels 36 , and the water channels 36 are connected to the water outlets 35 .

[0047] A water inlet 34 and a water channel 36 are provided on the main frame 4, which are mainly used for dust removal.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A road oil system for a combined cutting and bolting roadheader cutting reducer, comprising a main body of the cutting reducer, an input shaft is arranged on the main body of the cutting reducer, and a gear pump is connected to the input shaft, characterized in that, It further includes a main frame and an intermediate frame provided on the cutting speed reducer body. The main frame is provided with a first oil inlet hole and a first oil return hole, and the intermediate frame is provided with a second oil inlet hole and a second oil return hole. The main frame and the intermediate frame are connected by a connecting pin. A return oil circuit is connected between the first oil return hole and the second oil return hole, and an inlet oil circuit is connected between the first oil inlet hole and the second oil inlet hole. The inlet oil circuit extends to each point that needs lubrication. A drain pipe is connected between the gear pump and the return oil circuit, and the gear pump is connected with a suction pipe. An oil sump is provided on the intermediate frame, and the suction pipe extends into the oil sump. The first oil return hole is sequentially connected with a cooler and a fuel tank to the outside, and the fuel tank is communicated with the first oil inlet hole; Among them, the main frame is provided with a first hydraulic oil inlet and a second hydraulic oil inlet for controlling the telescopic movement of the left-end hydraulic cylinder and a third hydraulic oil inlet and a fourth hydraulic oil inlet for controlling the telescopic movement of the right-end hydraulic cylinder. An ear is provided on one side of the main frame close to the intermediate frame. The cutting speed reducer body is provided with a left-side first-stage planetary carrier and a right-side first-stage planetary carrier. The left-side first-stage planetary carrier and the right-side first-stage planetary carrier are respectively arranged on both sides of the intermediate frame. The first hydraulic oil inlet, the second hydraulic oil inlet, the third hydraulic oil inlet and the fourth hydraulic oil inlet are respectively communicated with a first hydraulic oil circuit, a second hydraulic oil circuit, a third hydraulic oil circuit and a fourth hydraulic oil circuit. The first hydraulic oil circuit and the second hydraulic oil circuit respectively pass through the ear, the intermediate frame and the left-side first-stage planetary carrier in sequence, and the third hydraulic oil circuit and the fourth hydraulic oil circuit respectively pass through the ear, the intermediate frame and the right-side first-stage planetary carrier in sequence. Each of the left-side first-stage planetary carrier and the right-side first-stage planetary carrier is connected with a hydraulic oil pipe, and each hydraulic oil pipe is connected with a hydraulic cylinder.

2. The oil circuit system of the integrated cutting and anchoring roadheader reducer according to claim 1, characterized in that An O-ring is connected between the first oil inlet hole and the second oil inlet hole, and an O-ring is connected between the first oil return hole and the second oil return hole.

3. The oil circuit system of the cutting and anchoring integrated cutting reducer according to claim 1, characterized in that, The points include an input gear pair and bearings, an input shaft bearing, and a bevel gear pair and bearings.

4. The oil circuit system of the integrated cutting and anchoring roadheader reducer according to claim 1, characterized in that, A plug is provided at the intersection of the inlet oil circuit and the return oil circuit.

5. The oil circuit system of the integrated cutting and bolting roadheader reducer according to claim 1, characterized in that, A number of process holes are provided on the main frame and the intermediate frame. Internal threads are provided in the process holes, and plugs are provided in the process holes.

6. The oil circuit system of the integrated cutting and anchoring roadheader reducer according to claim 1, characterized in that The main frame is provided with a water inlet and a number of water outlets. The water inlet is communicated with a number of water circuits, and the water circuits are communicated with the water outlets.

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