Wear-resistant inlay, valve plate, guide rail, guide rail and valve plate assembly, and slide valve

Abstract

The present invention discloses a wear-resistant inlay for a valve plate or a guide rail of a slide valve, comprising: a sliding part, including an elongated extending body, the elongated extending body including a sliding surface for serving as a sliding surface of the valve plate or the guide rail; and an assembly part extending from a side of the sliding part opposite to the sliding surface for assembling the wear-resistant inlay onto the valve plate or the guide rail. The present invention also discloses a valve plate, a guide rail, a guide rail and valve plate assembly, and a slide valve including the wear-resistant inlay. By locally applying the wear-resistant inlay to the valve plate or the guide rail of the slide valve via the structure of its assembly part, the present invention can achieve convenient connection between the wear-resistant inlay and the valve plate or the guide rail of the slide valve, effectively improve the local wear resistance of the valve plate or the guide rail of the slide valve, and at the same time, will not reduce the strength of the valve plate or the guide rail, thereby improving the performance of the valve plate, the guide rail and the slide valve.

Description

Technical Field

[0001] The present invention relates to the field of petrochemical engineering, and more particularly, to a wear-resistant insert for a slide valve used in catalytic cracking. The present invention also relates to a valve plate, a guide rail, a guide rail and valve plate assembly, and a slide valve including the wear-resistant insert. Background Art

[0002] Catalytic cracking slide valves are mainly used in catalyst circulation pipelines or flue gas pipelines, and the media passing through them are high-temperature catalysts or high-temperature flue gas with catalyst particles. Due to the special use location, complex media passing through them, and harsh working environment, the main internal components of catalytic cracking slide valves, such as valve plates and guide rails, are prone to damage, which often poses a safety hazard to the stable operation of the device.

[0003] In order to increase the wear resistance of components such as valve plates and guide rails, the traditional method is to surfacing hard alloy wear-resistant linings at the easily worn parts. However, this method has limited improvement in wear resistance, high cost, and the surfacing part is prone to falling off. Summary of the Invention

[0004] The object of the present invention is to provide a wear-resistant insert and a valve plate, a guide rail, a guide rail and valve plate assembly, and a slide valve including the same to at least alleviate or solve the above problems.

[0005] According to one aspect of the present invention, there is provided a wear-resistant insert for a valve plate or a guide rail of a slide valve, comprising:

[0006] A sliding portion, including an elongated extending body, the elongated extending body including a sliding surface for use as a sliding surface of the valve plate or the guide rail; and

[0007] An assembling portion, extending from a side of the sliding portion opposite to the sliding surface, for assembling the wear-resistant insert onto the valve plate or the guide rail.

[0008] The wear-resistant insert according to the present invention can be locally applied to the valve plate or the guide rail of the slide valve. The structure of its assembling portion can be conveniently connected to the valve plate or the guide rail of the slide valve, and the sliding portion can effectively improve the local wear resistance of the valve plate or the guide rail of the slide valve. At the same time, the setting of the wear-resistant insert will not reduce the strength of the valve plate or the guide rail.

[0009] Preferably, the wear-resistant insert is made of a wear-resistant material, preferably made of a ceramic material.

[0010] Preferably, the assembling portion is a columnar protrusion whose axis is perpendicular to the sliding surface and is discretely arranged along the extending direction of the elongated extending body.

[0011] Preferably, the assembly portion extends continuously along the extension direction of the slender extension body of the sliding portion, the end size of the cross-section of the assembly portion perpendicular to the sliding surface remains unchanged or decreases, and the wear-resistant insert further includes columnar protrusions with axes perpendicular to the sliding surface, which are discretely arranged along the extension direction of the slender extension body on the surface of the assembly portion opposite to the sliding surface.

[0012] Preferably, the cross-section of the columnar protrusion parallel to the sliding surface is preferably circular or rectangular.

[0013] The columnar protrusions themselves can form the assembly portion. When there are at least two columnar protrusions, they can also prevent the wear-resistant insert from rotating and sliding in a plane parallel to the support surface of the guide rail or the valve plate when the wear-resistant insert is assembled onto the valve plate or the guide rail.

[0014] Preferably, the cross-section of the assembly portion perpendicular to the sliding surface has a tenon shape with an enlarged end, and the tenon shape is preferably T-shaped, Y-shaped, trapezoidal or half of its shape.

[0015] In the case where the cross-section of the assembly portion perpendicular to the sliding surface has a tenon shape with an enlarged end, the assembly portion can position the wear-resistant insert in a direction perpendicular to the support surface of the guide rail or the valve plate when assembled into the guide rail or the valve plate, and fasteners can be not used.

[0016] Preferably, the wear-resistant insert further includes a through hole or a blind hole with an axis perpendicular to the sliding surface and opening from the side of the assembly portion opposite to the sliding surface, for cooperating with a fastener to fasten the wear-resistant insert to the valve plate or the guide rail.

[0017] According to the second aspect of the present invention, there is provided a valve plate for a slide valve, including:

[0018] A valve plate body, which is an extended straight plate. On both sides of one surface of the valve plate body that constitutes the straight plate plane, valve plate slots opening on the surface are provided; and

[0019] Two wear-resistant inserts according to the foregoing.

[0020] Wherein, the assembly portions of the two wear-resistant inserts are respectively assembled in the valve plate slots, the cross-sectional shape of the valve plate slots corresponds to the cross-sectional shape of the assembly portion, and the sliding surface protrudes outside the surface.

[0021] Preferably, the valve plate body is made of a metal material, and the valve plate body is a straight plate with a rectangular, T-shaped, inverted T-shaped or "concave-convex-concave" shaped side cross-section.

[0022] Preferably, a wear-resistant lining is further provided on at least the surface of the valve plate body, and the sliding surface of the wear-resistant insert of the valve plate extends beyond the outer surface of the wear-resistant lining or is flush with it.

[0023] Preferably, when the cross-section of the fitting portion of the wear-resistant insert perpendicular to the sliding surface has a tenon shape with an enlarged end, the valve plate slot penetrates the valve plate body along the length direction at least at one end, and a through opening is provided at the penetrating end of the valve plate body, and the wear-resistant insert is assembled in the valve plate slot through the through opening.

[0024] Preferably, when the wear-resistant insert further includes a through hole or a blind hole whose axis is perpendicular to the sliding surface and opens from the side of the fitting portion opposite to the sliding surface, the valve plate includes a through hole at a position corresponding to the through hole or the blind hole of the fitting portion.

[0025] According to the third aspect of the present invention, a guide rail for a slide valve is provided, including:

[0026] A guiding portion, including an elongated extending body and a supporting bottom protruding perpendicularly from the elongated extending body in a direction perpendicular to its extending direction and the vertical direction, the extending body and the supporting bottom form a clamping groove, and guide rail slots opening on the supporting surface are provided on the side portions of the supporting surface of the supporting bottom along the length direction; and

[0027] According to the wear-resistant insert described above, the fitting portion of the wear-resistant insert is assembled in the guide rail slot, the cross-sectional shape of the guide rail slot corresponds to the cross-sectional shape of the fitting portion, and the sliding surface extends beyond the supporting surface.

[0028] Preferably, the guiding portion is made of a metallic material, and the cross-sectional shape of the clamping groove of the guiding portion is L-shaped or U-shaped.

[0029] Preferably, a wear-resistant lining is further provided on at least the supporting surface of the guide rail, and the sliding surface of the wear-resistant insert of the guide rail extends beyond the outer surface of the wear-resistant lining or is flush with it.

[0030] Preferably, when the cross-section of the fitting portion of the wear-resistant insert perpendicular to the sliding surface has a tenon shape with an enlarged end, the guide rail slot penetrates the guide rail along the length direction at least at one end, and a through opening is provided at the penetrating end of the guide rail, and the wear-resistant insert is assembled in the guide rail slot through the through opening.

[0031] Preferably, when the wear-resistant insert further includes a through hole or a blind hole whose axis is perpendicular to the sliding surface and opens from the side of the fitting portion opposite to the sliding surface, the guide rail includes a through hole at a position corresponding to the through hole or the blind hole of the fitting portion.

[0032] According to a fourth aspect of the present invention, there is provided a guide rail and valve plate assembly for a slide valve, comprising:

[0033] The valve plate as described above, and two guide rails as described above,

[0034] Wherein, when the valve plate and the guide rails are installed in place, the surfaces on both sides in the length direction of the opening of the valve plate slot of the valve plate body are respectively arranged corresponding to the supporting bottoms of the two guide rails, and the sliding surfaces of each wear-resistant insert of the valve plate are respectively in fitting cooperation with the sliding surfaces of the wear-resistant inserts of each guide rail, so as to reciprocate along the extending direction of the wear-resistant inserts of the guide rail.

[0035] According to a fifth aspect of the present invention, there is provided a slide valve, comprising a valve housing, a throttle cone arranged in the valve housing, and the guide rail and valve plate assembly as described above. Wherein, the throttle cone includes a throttle cone bottom having a valve port and a hollow conical side portion, the guide rails are installed on both sides of the valve port of the throttle cone bottom, and when the valve plate reciprocates along the extending direction of the wear-resistant inserts of the guide rail, the valve port of the throttle cone bottom can be kept in any state between a fully closed state and a fully open state along with the movement of the valve plate.

[0036] Preferably, the valve plate is a single valve plate, the valve housing is a T-shaped three-way pipe body, the three-way pipe body includes a main pipe and a branch pipe extending from the middle of the main pipe, the throttle cone is arranged in the main pipe, the throttle cone bottom is located at the intersection of the main pipe and the branch pipe, the valve plate further includes a valve rod extending from the valve plate along the sliding direction of the valve plate, the valve rod is arranged in the branch pipe parallel to the branch pipe, and is driven by a driving device to make the valve plate reciprocate along the branch pipe.

[0037] Preferably, the valve plate is two split valve plates, the valve housing is a cross-shaped four-way pipe body, the four-way pipe body includes an intersecting first pipe and a second pipe, the throttle cone is arranged in the first pipe, the throttle cone bottom is located at the intersection of the first pipe and the second pipe, each valve plate further includes a valve rod extending from the end of the valve plate opposite to the split end along the sliding direction of the valve plate, the valve rod is arranged in the second pipe parallel to the second pipe, and is driven by a driving device to make the valve plate reciprocate along the second pipe.

[0038] According to the wear-resistant insert, valve plate, guide rail, guide rail and valve plate assembly, and slide valve of the present invention, by locally applying the wear-resistant insert to the valve plate or guide rail of the slide valve via its assembly part structure, the wear-resistant insert can be conveniently connected to the valve plate or guide rail of the slide valve, and the local wear resistance of the valve plate or guide rail of the slide valve can be effectively improved, while the strength of the valve plate or guide rail will not be reduced, thereby improving the performance of the valve plate, guide rail and slide valve. Description of the Drawings

[0039] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments read in conjunction with the accompanying drawings:

[0040] Figure 1 is a perspective view of a first embodiment of a wear-resistant insert according to the present invention;

[0041] Figure 2 is Figure 1 a front view of the wear-resistant insert shown in

[0042] Figure 3 is a sectional view of the wear-resistant insert taken along the A-A section in Figure 2 ;

[0043] Figure 4 is a front view of a second embodiment of a wear-resistant insert according to the present invention;

[0044] Figure 5 is Figure 4 a top view of the wear-resistant insert shown in

[0045] Figure 6 is Figure 4 a side view of the wear-resistant insert shown in

[0046] Figure 7 is a front view of a third embodiment of a wear-resistant insert according to the present invention;

[0047] Figure 8 is Figure 7 a top view of the wear-resistant insert shown in

[0048] Figure 9 is Figure 7 a side view of the wear-resistant insert shown in

[0049] Figure 10 is a side view of a fourth embodiment of a wear-resistant insert according to the present invention;

[0050] Figure 11 is a side view of a fifth embodiment of a wear-resistant insert according to the present invention;

[0051] Figure 12 is a side view of a sixth embodiment of a wear-resistant insert according to the present invention;

[0052] Figure 13 is an enlarged side sectional view of a first embodiment of a valve plate according to the present invention when installed in place with a first embodiment of a guide rail according to the present invention;

[0053] Figure 14 is a front view of a valve plate body of a first embodiment of a valve plate according to the present invention;

[0054] Figure 15 is a cross-sectional view of the valve plate body taken along Figure 14 section B-B in

[0055] Figure 16 is Figure 13 a front view of the guiding portion of the first embodiment of the guide rail according to the present invention as shown in

[0056] Figure 17 is Figure 13 a bottom-up cross-sectional view of the guiding portion of the first embodiment of the guide rail according to the present invention as shown in

[0057] Figure 18 a side cross-sectional enlarged view when the second embodiment of the guide rail according to the present invention is installed in place with the first embodiment of the valve plate according to the present invention;

[0058] Figure 19 a side cross-sectional enlarged view when the third embodiment of the guide rail according to the present invention is installed in place with the first embodiment of the valve plate according to the present invention;

[0059] Figure 20 a side cross-sectional enlarged view when the fourth embodiment of the guide rail according to the present invention is installed in place with the first embodiment of the valve plate according to the present invention;

[0060] Figure 21 a side cross-sectional enlarged view when the fifth embodiment of the guide rail according to the present invention is installed in place with the first embodiment of the valve plate according to the present invention;

[0061] Figure 22 a side cross-sectional enlarged view when the sixth embodiment of the guide rail according to the present invention is installed in place with the first embodiment of the valve plate according to the present invention;

[0062] Figure 23 a side cross-sectional enlarged view when the seventh embodiment of the guide rail according to the present invention is installed in place with the first embodiment of the valve plate according to the present invention;

[0063] Figure 24 a front view of the guiding portion of the eighth embodiment of the guide rail according to the present invention;

[0064] Figure 25 is Figure 24 a bottom-up cross-sectional view of the guiding portion of the guide rail as shown in

[0065] Figure 26 a front view of the first embodiment of the guide rail and valve plate assembly according to the present invention;

[0066] Figure 27 is along Figure 26 a cross-sectional view of the guide rail and valve plate assembly taken along section C-C in

[0067] Figure 28 is the front view of the second embodiment of the guide rail and valve plate assembly according to the present invention;

[0068] Figure 29 is the perspective view of the first embodiment of the spool valve according to the present invention;

[0069] Figure 30 is Figure 29 the top view of the first embodiment of the spool valve shown in;

[0070] Figure 31 is along Figure 30 the sectional view taken along the section D-D in;

[0071] Figure 32 is along Figure 30 the sectional view taken along the section E-E in;

[0072] Figure 33 is the side sectional view taken by a vertical section parallel to the extending direction of the guide rail and passing through the valve stem of the second embodiment of the spool valve according to the present invention. Detailed Embodiments

[0073] The following further elaborates on the present application. It can be understood that the specific embodiments described herein are merely for explaining the relevant invention and not for limiting the invention. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0074] The present invention is an improvement to the spool valve. Specifically, it is an improvement to the guide rail and valve plate assembly of the spool valve, the guide rail and / or the valve plate, and the improvement is achieved by providing wear-resistant inserts on the guide rail and / or the valve plate of the spool valve.

[0075] The following will respectively describe in detail the wear-resistant inserts, valve plates, guide rails, guide rail and valve plate assemblies, and various embodiments of the spool valve with reference to the accompanying drawings.

[0076] Figure 1 is the perspective view of the first embodiment of the wear-resistant insert according to the present invention; Figure 2 is Figure 1 the front view of the wear-resistant insert shown in; Figure 3 is along Figure 2 the sectional view of the wear-resistant insert taken along the section A-A in. Refer to Figures 1 to 3, In the figure, the wear-resistant inlay is generally indicated by reference numeral 110. The wear-resistant inlay 110 includes a sliding portion 111 and an assembling portion 112. The sliding portion 111 includes an elongated extending body, and the elongated extending body includes a sliding surface 1111, which serves as a sliding surface for the valve plate or the guide rail. The assembling portion 112 extends from the side of the sliding portion 111 opposite to the sliding surface 1111 and is used to assemble the wear-resistant inlay 110 onto the valve plate or the guide rail.

[0077] In this embodiment, specifically referring to Figure 3 , the cross-section of the assembling portion 112 perpendicular to the sliding surface 1111 has a tenon shape with an enlarged end, Figure 3 and the tenon shape shown in

[0078] is a dovetail shape. The cross-section of the assembling portion 112 of the wear-resistant inlay 110 according to the present invention with an enlarged tenon shape perpendicular to the sliding surface 1111 may also preferably be a T shape, a Y shape, a trapezoid shape or half of these shapes. Figures 1 to 3 It can also be seen from

[0079] that the wear-resistant inlay 110 further includes a wear-resistant inlay through hole or blind hole 113 whose axis is perpendicular to the sliding surface 111 and opens from the side of the assembling portion 112 opposite to the sliding surface 1111, and is used to cooperate with a fastener to fix the wear-resistant inlay 110 to the valve plate or the guide rail.

[0080] Figure 4 is the front view of the second embodiment of the wear-resistant inlay according to the present invention; Figure 5 is Figure 4 the top view of the wear-resistant inlay shown in Figure 6 is Figure 4 the side view of the wear-resistant inlay shown in

[0081] Referring to Figures 4 to 6 , the wear-resistant inlay 210 includes a sliding portion 211 and an assembling portion 212. The sliding portion 211 includes an elongated extending body, and the elongated extending body includes a sliding surface 2111, which serves as a sliding surface for the valve plate or the guide rail. The assembling portion 212 extends from the side of the sliding portion 211 opposite to the sliding surface 2111 and is used to assemble the wear-resistant inlay 210 onto the valve plate or the guide rail.

[0082] In this embodiment, specifically referring to Figure 4 and Figure 6 , the assembling portion 212 is a cylindrical protrusion whose axis is perpendicular to the sliding surface 2111 and is discretely arranged along the extending direction of the elongated extending body of the sliding portion 211, and the cross-section of the cylindrical protrusion parallel to the sliding surface 2111 is circular.

[0083] In this embodiment, the wear-resistant insert 210 may further include a through hole or a blind hole (not shown in the figure) whose axis is perpendicular to the sliding surface 2111 and opens from the side of the cylindrical protrusion opposite to the sliding surface 2111, and is used to cooperate with a fastener to fasten the wear-resistant insert 210 to the valve plate or the guide rail.

[0084] Figure 7 is the front view of the third embodiment of the wear-resistant insert according to the present invention; Figure 8 is Figure 7 the top view of the wear-resistant insert shown in Figure 9 is Figure 7 the side view of the wear-resistant insert shown in. In the third embodiment of the wear-resistant insert of the present invention, the same components are denoted by the same reference numerals as those in the second embodiment. For the sake of distinction, only the first digit is increased by 1.

[0085] The difference between the wear-resistant insert 310 of this embodiment and the wear-resistant insert 210 of the second embodiment is only that the columnar protrusion serving as the assembly portion 312 is a rectangular columnar protrusion, and the cross-section of the rectangular columnar protrusion parallel to the sliding surface 3111 is rectangular, as Figure 7 shown in.

[0086] Figure 10 is the side view of the fourth embodiment of the wear-resistant insert according to the present invention. In the fourth embodiment of the wear-resistant insert of the present invention, the same components are denoted by the same reference numerals as those in the first embodiment. For the sake of distinction, only the first digit is increased by 3.

[0087] In this embodiment, the assembly portion 412 of the wear-resistant insert 410 continuously extends along the extending direction of the slender extending body of the sliding portion 411, and the end dimension of the cross-section of the assembly portion 412 perpendicular to the sliding surface 4111 decreases, presenting a trapezoidal shape with the bottom parallel to the sliding surface 4111.

[0088] Figure 11 is the side view of the fifth embodiment of the wear-resistant insert according to the present invention. In the fifth embodiment of the wear-resistant insert of the present invention, the same components are denoted by the same reference numerals as those in the fourth embodiment. For the sake of distinction, only the first digit is increased by 1.

[0089] In this embodiment, the assembly portion 512 of the wear-resistant insert 510 continuously extends along the extending direction of the slender extending body of the sliding portion 511, and the end dimension of the cross-section of the assembly portion 512 perpendicular to the sliding surface 5111 remains unchanged, presenting a rectangular shape.

[0090] In this embodiment, the assembly portion 512 of the wear-resistant insert 510 can also be discretely arranged. The wear-resistant insert 510 may further include a through hole or a blind hole whose axis is perpendicular to the sliding surface 5111 and opens from the side of the assembly portion 512 opposite to the sliding surface 5111, for cooperating with a fastener to fasten the wear-resistant insert 510 to the valve plate or the guide rail.

[0091] Figure 12 It is a side view of the sixth embodiment of the wear-resistant insert according to the present invention. The same components in the sixth embodiment of the wear-resistant insert of the present invention adopt the same reference numerals as those in the fifth embodiment. For the sake of distinction, only the first digit is increased by 1.

[0092] In the sixth embodiment of this wear-resistant insert, the wear-resistant insert is generally denoted by 610. The difference from the fifth embodiment of the wear-resistant insert is that the wear-resistant insert 610 further includes columnar protrusions 614 whose axes are perpendicular to the sliding surface 6111 and are discretely arranged along the extending direction of the slender extending body from the surface of the assembly portion 612 opposite to the sliding surface 6111.

[0093] The columnar protrusions 614 of the wear-resistant insert 610 in this embodiment can be cylindrical protrusions or rectangular columnar protrusions. The assembly portion 612 of the wear-resistant insert 610 in this embodiment can also be discretely arranged, and can be a cylinder or a rectangular column with a discrete size larger than that of the columnar protrusions 614. The columnar protrusions 614 are arranged corresponding to the cylinder or rectangular column of the discretely arranged assembly portion 612. The wear-resistant insert 610 may further include a through hole or a blind hole whose axis is perpendicular to the sliding surface 6111 and opens from the side of the assembly portion 612 and / or the columnar protrusions 614 opposite to the sliding surface 6111, for cooperating with a fastener to fasten the wear-resistant insert 610 to the valve plate or the guide rail.

[0094] Figures 1 to 12 The structure of the wear-resistant insert shown in is only exemplary. The structure of the assembly portion of the wear-resistant insert according to the present invention or the cross-sectional shape perpendicular to the sliding surface is not limited to Figures 1 to 12 as shown in, as long as it can achieve the function of assembling the wear-resistant insert to the valve plate or the guide rail to play a wear-resistant role.

[0095] Figure 13 It is an enlarged side view sectional view when the first embodiment of the valve plate according to the present invention is installed in place with the first embodiment of the guide rail according to the present invention (for the overall side view sectional view when the first embodiment of the valve plate according to the present invention is installed in place with the first embodiment of the guide rail according to the present invention, reference can be made to the following Figure 27 ); Figure 14 It is a front view of the valve plate body of the first embodiment of the valve plate according to the present invention; Figure 15 It is along Figure 14 The cross-sectional view of the valve plate body taken along section B-B in.

[0096] Refer to simultaneouslyFigure 13 , Figure 14 , Figure 15 and Figure 25 , in the figure, the valve plate is generally labeled with reference numeral 120. The valve plate 120 includes a valve plate body 121. The valve plate body 121 is an extended straight plate. On both sides 1211 along the length direction of one surface of the valve plate body 121 that constitutes the straight plate plane, there are provided valve plate slots 1212 that open on this surface. The assembly parts 112 of two wear-resistant inserts 110 are respectively assembled in the valve plate slots 1212. The cross-sectional shape of the valve plate slots 1212 corresponds to the cross-sectional shape of the assembly parts 112. At the corresponding position of the bottom of the valve plate slots 1212 and the wear-resistant insert through holes or blind holes 113 provided on the wear-resistant inserts 110, there are provided valve plate slot through holes 1213. The sliding surfaces 1111 of the wear-resistant inserts 110 extend beyond this surface where the valve plate slots 1212 are provided.

[0097] The valve plate body 121 is made of a metal material, which makes the valve plate easy to manufacture and keeps the valve plate 120 have sufficient strength. At the same time, due to the combination of the wear-resistant inserts 110, the valve plate 120 has wear resistance. A wear-resistant lining 122 can also be provided on the surface of the valve plate body 121 to prevent wear on the metal valve plate body, fastening bolts, etc. caused by media such as catalysts during use. In this case, the sliding surfaces 1111 of the wear-resistant inserts 110 of the valve plate 120 extend beyond the outer surface of the wear-resistant lining 122, or can be flush with the outer surface of the wear-resistant lining 122.

[0098] In this embodiment, specifically referring to Figure 15 , the cross-section of the valve plate body 121 of the valve plate 120 is rectangular. However, the valve plate according to the present invention is not limited to this. The cross-section of the valve plate body 121 can also be T-shaped, inverted T-shaped or with a "concave-convex-concave" shape on the side.

[0099] In this embodiment, the wear-resistant inserts provided in the valve plate slots 1212 of the valve plate 120 are the wear-resistant inserts 110 of the first embodiment, and the cross-section of the assembly part 112 perpendicular to the sliding surface 1111 has a tenon shape with an enlarged end. Specifically referring to Figure 13, this figure shows the actual usage state of the valve plate 120. Since the wear-resistant insert 110 provided on the valve plate 120 needs to be fixed in position relative to the valve plate body 121 in the vertical direction, the wear-resistant insert 110 of this first embodiment is preferred. Its assembly part 112 has a tenon shape with an enlarged end from the cross-section perpendicular to the sliding surface 1111, so that the wear-resistant insert 110 is self-locked in the valve plate slot 1212 of the valve plate body 121 without the need for additional fasteners to fix the wear-resistant insert 110 in position in the vertical direction. Even when using the fastener 115, the fastener 115 used only serves to prevent the wear-resistant insert 110 from sliding along the extending direction of the valve plate slot 1212 and does not need to bear the weight of the wear-resistant insert 110. However, under the structure of the wear-resistant insert 110, due to its cross-section being a tenon shape with an enlarged end, the valve plate slot 1212 penetrates the valve plate body 121 at least at one end along the length direction, and there is a through opening at the penetrated end of the valve plate body 121. For details, see Figure 13 , the wear-resistant insert 110 is assembled in the valve plate slot 1212 through this through opening.

[0100] In other embodiments (not shown) of the valve plate according to the present invention, the difference from the first embodiment of this valve plate, in addition to the cross-sectional shape of the valve plate body, mainly lies in the use of Figures 4 to 12 the wear-resistant inserts of different embodiments shown in Figures 4 to 12 The second to sixth embodiments of the wear-resistant inserts shown in

[0101] In addition, for wear-resistant inserts of different embodiments, in addition to considering the assembly structure matching as described above for the corresponding groove structures, the relative positioning of the wear-resistant inserts in their extending direction and vertical direction also needs to be considered. For example, when using the wear-resistant insert of the first embodiment, the valve plate slot is a continuous slot that penetrates the valve plate body at least at one end along the length direction. Although in the vertical direction, due to the tenon structure with an increased cross-section of the wear-resistant insert, fasteners are not required to fix it in the vertical direction, it is preferably still necessary to use fasteners or connectors to fix the wear-resistant insert on the valve plate body in its extending direction. When using the wear-resistant inserts of the second to sixth embodiments, regardless of whether the valve plate slot is a continuous through slot, a continuous non-through slot, or a discrete groove, since at least fasteners or connectors are required to fix the wear-resistant insert on the valve plate body in the vertical direction, the wear-resistant insert can be fixed in position relative to the valve plate body in its extending direction at the same time, without considering the structure of the valve plate slot from the perspective of the blocking effect.

[0102] The following will describe in detail an embodiment of the guide rail according to the present invention in conjunction with Figure 13 、 Figures 16 to 25 The structural considerations regarding the valve plate slot described above also apply to the guide rail slot. The difference is only that the structure of the guide rail slot does not need to consider fixing the wear-resistant insert in the vertical direction.

[0103] Figure 16 is Figure 13 the front view of the guiding part of the first embodiment of the guide rail according to the present invention shown in Figure 17 is Figure 13 the upward sectional view of the guiding part of the first embodiment of the guide rail according to the present invention shown in Figure 13 、 Figure 16 and Figure 17 to describe in detail the specific structure of the first embodiment of the guide rail according to the present invention.

[0104] In the figure, the guide rail is generally labeled with the reference numeral 130. The guide rail 130 includes a guiding part 131. Specifically, referring to Figure 16 and Figure 17, the guiding portion 131 includes an elongated extending body 1311, and a supporting bottom 1312 extending perpendicularly from the elongated extending body in a direction perpendicular to its extending direction and the vertical direction. The extending body 1311 and the supporting bottom 1312 form a clamping groove. A guide rail slot 1313 opening on the supporting surface 1314 is provided on a side portion along the length direction of the supporting surface 1314 of the supporting bottom 1312. The guide rail 130 further includes a wear-resistant insert 510 according to the fifth embodiment of the present invention disposed in the guide rail slot 1313. The assembling portion 512 of the wear-resistant insert 510 is assembled in the guide rail slot 1313. The cross-sectional shape of the guide rail slot 1313 corresponds to the cross-sectional shape of the assembling portion 512 of the wear-resistant insert 510. The sliding surface 5111 of the wear-resistant insert 510 extends beyond the supporting surface 1314 of the guiding portion 131 of the guide rail 130. In this embodiment, the guide rail slot 1313 is a continuous slot that is not penetrated at both ends. See Figure 16 , since the two ends of the slot can prevent the wear-resistant insert 510 installed therein from moving relative to the guide rail main body 131 along its extending direction, in this embodiment, fasteners or connectors such as bolts are not used to position the wear-resistant insert 510 and the guiding portion 131 of the guide rail 130 relative to the extending direction of the guiding portion 131.

[0105] The guiding portion 131 is made of a metal material, which makes the guide rail 130 easy to manufacture and keeps the guide rail 130 having sufficient strength. At the same time, due to the combination of the wear-resistant insert 510, the guide rail 130 has wear resistance. A wear-resistant lining 132 may also be provided on the surface of the guiding portion 131. In this case, the sliding surface 5111 of the wear-resistant insert 510 of the guide rail 130 also extends beyond the outer surface of the wear-resistant lining 132. In this embodiment, specifically referring to Figure 17 , the cross-section of the clamping groove of the guiding portion 131 of the guide rail 130 is L-shaped. A wear-resistant lining 132 may also be provided on the surface of the guiding portion 131 to prevent wear of the metal guiding portion, fastening bolts, etc. caused by media such as catalysts during use. In this case, the sliding surface 5111 of the wear-resistant insert 510 of the guide rail 130 extends beyond the outer surface of the wear-resistant lining 132 or may be flush with the outer surface of the wear-resistant lining 132.

[0106] In this embodiment, the wear-resistant insert provided in the guide slot 1313 on the support bottom 1312 of the guiding portion 131 of the guide rail 130 may also be the wear-resistant insert 210 of the second embodiment, and its fitting portion 212 is a cylindrical protrusion discretely arranged along the extension main body 1311 of the guiding portion 131 of the guide rail 130. The wear-resistant insert 210 may also be replaced by the wear-resistant insert 310 of the third embodiment, while other structures remain unchanged. At this time, if both ends of the guide slot 1313 that are not through can still block the wear-resistant inserts 210 and 310 from moving relative to the guiding portion 131 along its extending direction, there is no need for fasteners or connectors such as bolts to fix the wear-resistant inserts 210 and 310 relative to the guiding portion 131. Otherwise, fasteners or connectors such as bolts can also be used to fix the wear-resistant inserts 210 and 310 relative to the guiding portion 131. In this case, the guide slot 1313 may also be a slot that is through at least one end.

[0107] When the wear-resistant insert adopts the wear-resistant insert 210 of the second embodiment or the wear-resistant insert 310 of the third embodiment, the guide slot 1313 may also be a discrete groove corresponding to the discrete cylindrical protrusions of the fitting portions 212 or 312 of the corresponding wear-resistant inserts 210 or 310. In this case, when there are at least two cylindrical protrusions, or at least one rectangular cylindrical protrusion, the wear-resistant insert 210 or 310 can be fixed in place relative to the guiding portion 131 of the guide rail 130 in the working state of the guide rail 130, preventing the wear-resistant insert 210 or 310 from sliding relative to the extending direction of the guiding portion 131.

[0108] Figure 18 It is an enlarged side view sectional view when the second embodiment of the guide rail according to the present invention is installed in place with the first embodiment of the valve plate according to the present invention. The same components in the second embodiment of the guide rail of the present invention adopt the same reference numerals as those in the first embodiment. For the sake of distinction, only the first digit is increased by 1.

[0109] The difference between the second embodiment of the guide rail and the first embodiment lies only in that the wear-resistant insert 510 of the fifth embodiment adopted is fixed in place relative to the guiding portion 231 of the guide rail 230 in its extending direction through fasteners or connectors 515, preventing the wear-resistant insert 510 from sliding relative to the guiding portion 231 in its extending direction. In this case, the fasteners or connectors 515 are first fastened or connected to the wear-resistant insert 510, and blind holes corresponding to the fasteners or connectors 515 are provided at the bottom of the guide slot of the guiding portion 231 of the guide rail 230 that cooperates with the fitting portion 512. While the wear-resistant insert 510 is assembled in the guide slot, the fasteners or connectors 515 are assembled in place in the corresponding blind holes.

[0110] The wear-resistant insert 510 of this embodiment can also be replaced by the wear-resistant insert 210 or 310. Since the fastener or connector 515 and the corresponding blind hole have already served to fix the wear-resistant inserts 210 and 310 in place relative to the guiding portion 231, the guide rail slot can likewise be a continuous slot that is at least open at one end or a continuous slot that is not open at either end. At the position corresponding to the fastener at the bottom of the continuous slot, a blind hole corresponding to the position of the fastener or connector is provided. In the case of using the wear-resistant insert 210 or 310, the guide rail slot can also be a discrete groove corresponding to the columnar protrusion serving as the corresponding fitting portion 212 or 312. At the position corresponding to the fastener at the bottom of the discrete groove, a blind hole corresponding to the position of the fastener or connector can be provided.

[0111] Figure 19 It is an enlarged side sectional view when the valve plate is installed in place according to the third embodiment of the guide rail of the present invention. The same components in the third embodiment of the guide rail of the present invention use the same reference numerals as those in the second embodiment. For the sake of distinction, only the first digit is increased by 1.

[0112] The difference between this third embodiment of the guide rail and the second embodiment lies only in that a through hole corresponding to the fastener or connector 315 is provided at the bottom of the guide rail slot of the guide rail 330 that cooperates with the fitting portion 512 of the wear-resistant insert 510. After the wear-resistant insert 510 is assembled in the guide rail slot, the fastener or connector 315 fastens the wear-resistant insert 510 in place through the corresponding through hole on the guide rail 330. In this embodiment, since the fastener or connector 315 is used to prevent the wear-resistant insert 510 from moving along its extending direction relative to the guiding portion 331, the guide rail slot can be a continuous slot that is at least open at one end or a continuous slot that is not open at either end.

[0113] Figure 20 It is an enlarged side sectional view when the fourth embodiment of the guide rail of the present invention is installed in place with the first embodiment of the valve plate of the present invention. The same components in the fourth embodiment of the guide rail of the present invention use the same reference numerals as those in the first embodiment. For the sake of distinction, only the first digit is increased by 3.

[0114] The difference between this fourth embodiment of the guide rail and the first embodiment lies in that the wear-resistant insert uses the wear-resistant insert 410 of the fourth embodiment.

[0115] Due to the adoption of the wear-resistant insert 410 of the fourth embodiment, the guide rail slot of the guide rail 430 in this embodiment can be a continuous slot that is not penetrated at both ends. In this case, it is not necessary to use fasteners or connectors to connect or fasten the wear-resistant insert 410 to the guiding portion 431 of the guide rail 430 to prevent the wear-resistant insert 410 from moving along its extending direction relative to the guiding portion 431. If the guide rail slot is a continuous slot that is penetrated at at least one end, fasteners or connectors can also be used to connect or fasten the wear-resistant insert 410 to the guiding portion 431 of the guide rail 430.

[0116] Figure 21 FIG. is an enlarged side cross-sectional view when the fifth embodiment of the guide rail according to the present invention is installed in place with the valve plate. The same components in the fifth embodiment of the guide rail of the present invention adopt the same reference numerals as those in the fourth embodiment. For distinction, only the first digit is increased by 1.

[0117] The difference between this embodiment and the fourth embodiment is only that the fastener or connector 515 is first fastened or connected to the wear-resistant insert 410, and a blind hole corresponding to the fastener or connector 515 is provided at the bottom of the guide rail slot of the guide rail 530 that cooperates with the fitting portion 412. While the wear-resistant insert 410 is assembled in the guide rail slot, the fastener or connector 515 is assembled in place in the corresponding blind hole. In this embodiment, since the fastener or connector 515 and the corresponding blind hole have already served to fix the wear-resistant insert 410 in place relative to the guiding portion 531, the guide rail slot can likewise be a continuous slot that is penetrated at at least one end or a continuous slot that is not penetrated at both ends.

[0118] Figure 22 FIG. is an enlarged side cross-sectional view when the sixth embodiment of the guide rail according to the present invention is installed in place with the first embodiment of the valve plate according to the present invention. The same components in the sixth embodiment of the guide rail of the present invention adopt the same reference numerals as those in the fifth embodiment. For distinction, only the first digit is increased by 1.

[0119] The difference between this embodiment and the fifth embodiment is only that the wear-resistant insert adopts the wear-resistant insert 610 of the sixth embodiment, the cross-section of the guide rail slot corresponds to the fitting portion 612 of the wear-resistant insert 610, and discrete grooves corresponding to the columnar protrusions 614 are further provided at positions corresponding to the columnar protrusions 614 at the bottom of the guide rail slot. The function of the columnar protrusions 614 of the wear-resistant insert 610 is the same as that of the connector or fastener 515 used to relatively position the wear-resistant insert 410 of the fifth embodiment of the guide rail 530 in the extending direction relative to the guiding portion 531 of the guide rail 530.

[0120] In this embodiment, since the columnar protrusions 614 and the corresponding discrete grooves have already played the role of preventing the wear-resistant insert 610 from moving relative to the guiding portion 531 along its extending direction, the guide rail slot can be a continuous slot that penetrates at least one end, or a continuous slot that does not penetrate at both ends.

[0121] Figure 23 It is an enlarged side sectional view when the seventh embodiment of the guide rail according to the present invention is installed in place with the first embodiment of the valve plate according to the present invention. The same components in the seventh embodiment of the guide rail of the present invention are denoted by the same reference numerals as those in the fourth embodiment. For distinction, only the first digit is increased by 3.

[0122] The main difference between the seventh embodiment of this guide rail and the fourth embodiment of the guide rail is that the seventh embodiment adopts the wear-resistant insert 110 of the first embodiment. Since the cross-section of the fitting portion 112 of the wear-resistant insert 110 perpendicular to the sliding surface 1111 has a tenon shape with an enlarged end, the cross-section of the guide rail slot of the guide rail 730 perpendicular to the extending direction of the guide rail corresponds to this cross-section of the wear-resistant insert 110, and the guide rail slot penetrates at least one end of the support bottom of the guide rail 730 along the length direction. The penetrated end of the support bottom of the guide rail 730 has a through opening, and the wear-resistant insert 110 can be assembled into the guide rail slot through this through opening. In order to prevent the wear-resistant insert 110 from sliding along the extending direction of the guide rail slot in the guide rail slot, in this embodiment, fasteners or connecting members can be used to position the wear-resistant insert 110 relative to the guide rail slot.

[0123] Figure 24 It is the front view of the guiding portion of the eighth embodiment of the guide rail according to the present invention; Figure 25 is Figure 24 the upward sectional view of the guiding portion of the guide rail shown in Figure 24 and Figure 25 to describe in detail the specific structure of the eighth embodiment of the guide rail according to the present invention.

[0124] The same components in the eighth embodiment of the guide rail of the present invention are denoted by the same reference numerals as those in the first embodiment. For distinction, only the first digit is increased by 7.

[0125] The difference between the eighth embodiment of the guide rail and the first embodiment lies only in Figure 24 and Figure 25 the cross-section of the card slot perpendicular to the extending direction of the guiding portion 831 shown in is U-shaped, while Figure 16 and Figure 17 the cross-section of the card slot of the guiding portion 131 shown in is L-shaped.

[0126] More embodiments of the guide rail according to the present invention can be achieved by using the same structure as the wear-resistant inserts and corresponding guide rail slots in the second to seventh embodiments of the guide rail, or other structures that are different from the wear-resistant inserts and corresponding guide rail slots in the first to seventh embodiments of the guide rail but can still implement the principles of the present invention.

[0127] Figure 26 is a front view of the first embodiment of the guide rail and valve plate assembly according to the present invention; Figure 27 is along Figure 26 The cross-sectional view of the guide rail and valve plate assembly taken along the C-C section in. In the figure, the guide rail and valve plate assembly are generally labeled with the reference numeral 10. The guide rail and valve plate assembly 10 includes a valve plate 120 and two guide rails 130. The valve plate 120 includes a valve plate body 121, a valve stem 122, and a wear-resistant insert 110 according to the first embodiment of the present invention assembled in the valve plate slot of the valve plate body 121. The guide rail 130 includes a guiding portion 131 and a wear-resistant insert 210 according to the second embodiment of the present invention assembled in the guide rail slot of the supporting bottom 1312 of the guiding portion 131. Among them, when the valve plate 120 and the guide rail 130 are installed in place, the surfaces of the openings of the valve plate slots of the valve plate body 121 are respectively arranged corresponding to the supporting bottoms 1312 of the two guide rails 130 along both sides in the length direction, and the sliding surfaces of each wear-resistant insert 110 of the valve plate 120 are respectively in fitting cooperation with the sliding surfaces of the wear-resistant inserts 210 of each guide rail 130 to reciprocate along the extending direction of the wear-resistant insert 210 of the guide rail 130.

[0128] Figure 28 is a front view of the second embodiment of the guide rail and valve plate assembly according to the present invention. In the second embodiment of the guide rail and valve plate assembly of the present invention, the same components are labeled with the same reference numerals as those in the first embodiment. For the sake of distinction, only the first digit is increased by 1. Figure 28Among them, the guide rail and valve plate assembly of this embodiment are generally marked with the reference numeral 20. The guide rail and valve plate assembly 20 includes a first valve plate 220, a second valve plate 220', and two guide rails 230. The first valve plate 220 includes a first valve plate body 221, a first valve stem 222, and a wear-resistant insert according to the first embodiment of the present invention (not shown in the figure) assembled in the valve plate slot of the first valve plate body 221. The second valve plate 220' includes a second valve plate body 221', a second valve stem 222', and a wear-resistant insert according to the first embodiment of the present invention (not shown in the figure) assembled in the valve plate slot of the second valve plate body 221'. The guide rail 230 includes a guiding portion 231 and a wear-resistant insert 210 according to the second embodiment of the present invention assembled in the guide rail slot of the supporting bottom 2312 of the guiding portion 231. Wherein, when the first valve plate 220 and the second valve plate 220' are symmetrically installed on the guide rail 230, the surfaces of the openings of the valve plate slots of the first valve plate body 221 and the second valve plate body 221' are respectively arranged corresponding to the supporting bottoms of the two guide rails 230 along both sides in the length direction, and the sliding surfaces of each wear-resistant insert of the first valve plate 220 and the second valve plate 220' are respectively in fitting cooperation with the sliding surfaces of the wear-resistant insert 210 of each guide rail 230, so as to reciprocate relative to each other in the extending direction of the wear-resistant insert 210 of the guide rail 230 in opposite ways.

[0129] By replacing the guide rails and / or valve plates in the first embodiment and the second embodiment of the guide rail and valve plate assembly according to the present invention with various different combinations of the guide rails of the foregoing different embodiments and the valve plates of different embodiments, more embodiments of the guide rail and valve plate assembly according to the present invention can be realized.

[0130] Figure 29 is a perspective view of the first embodiment of the slide valve according to the present invention. Figure 30 is Figure 29 the top view of the first embodiment of the slide valve shown in Figure 29 and 30 As can be seen from

[0131] Figure 31 is a cross-sectional view taken along the section D-D in Figure 30 Shown in. Figure 32 is a cross-sectional view taken along the section E-E in Figure 30 Shown in. Referring to Figure 31 and 32, as shown in the figure, in the valve housing, the throttle cone 14 includes a throttle cone bottom 142 having a valve port 1421 and a hollow conical side portion 141. Guide rails 130 are installed on both sides of the valve port 1421 of the throttle cone bottom 142. When the wear-resistant inlay of the valve plate 120 (not labeled in the figure) reciprocates along the extension direction on the wear-resistant inlay of the guide rail 130 (not shown in the figure), the valve port 1421 of the throttle cone bottom 142 can be kept in any state between the fully closed state and the fully open state along with the movement of the valve plate 120.

[0132] Figure 33 is a side cross-sectional view taken along a vertical section parallel to the extension direction of the guide rail and passing through the valve stem of the second embodiment of the spool valve according to the present invention. The same components in the second embodiment of the spool valve according to the present invention are denoted by the same reference numerals as those in the first embodiment. For distinction, only the first digit is increased by 1.

[0133] In the spool valve according to the second embodiment of the present invention, the spool valve is generally denoted by 2. The spool valve 2 includes a valve housing, which is a cross-shaped four-way pipe body. The four-way pipe body includes an intersecting first pipe 21 and a second pipe 22. The throttle cone 24 is disposed in the first pipe 21, and the throttle cone bottom 242 is located at the intersection of the first pipe 21 and the second pipe 22. The spool valve 2 further includes split first valve plate 220 and second valve plate 220', which are symmetrically disposed on the guide rail 230 installed on the throttle cone bottom 242. The first valve plate 220 and the second valve plate 220' are respectively driven by corresponding driving devices, such that the first valve plate 220 and the second valve plate 220' reciprocate in opposite directions along the second pipe 22. When the first valve plate 220 and the second valve plate 220' move in opposite directions until the first valve plate body 221 and the second valve plate body 221' abut against each other, the valve port 2421 is closed and the spool valve 2 is in the closed state; when the first valve plate 220 and the second valve plate 220' move in the reverse direction from the abutting position, the valve port 2421 gradually opens and the spool valve 2 is in the open state. Thus, the spool valve 2 can be kept in any state between the fully closed state and the fully open state along with the movement of the first valve plate 220 and the second valve plate 220'.

[0134] The spool valve according to the present invention is not limited to the embodiments described above and can be implemented in various ways. For example, the first pipe and the second pipe of the spool valve housing may be angled and disposed in different planes, or the first valve plate and the second valve plate may not be driven in cooperation. For example, only one of them can be driven to open the spool valve.

[0135] In summary, according to the wear-resistant inlay, valve plate, guide rail, guide rail and valve plate assembly, and slide valve of the present invention, by locally applying the wear-resistant inlay to the valve plate or guide rail of the slide valve via the structure of its assembly part, it can be conveniently connected to the valve plate or guide rail of the slide valve, and can also effectively improve the local wear resistance of the valve plate or guide rail of the slide valve, while not reducing the strength of the valve plate or guide rail, thereby improving the performance of the slide valve.

[0136] The above description is only a preferred embodiment of the present application and an explanation of the technical principles applied. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solution formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A component for a spool valve, comprising a valve plate and two guide rails. The valve plate includes a valve plate body and two first wear-resistant inserts, and the guide rails include a guiding portion and second wear-resistant inserts, wherein: The valve plate body is an extended straight plate. On both sides of one surface of the valve plate body that constitutes the straight plate plane, valve plate slots opening on the surface are provided along the length direction. The valve plate body is made of metal, and a wear-resistant lining is further provided on at least the surface of the valve plate body. The guiding portion includes an elongated extended body and a supporting bottom extending perpendicularly to its extending direction and the vertical direction from the elongated extended body. The extended body and the supporting bottom form a clamping slot. Guide rail slots opening on the supporting surface are provided on the side portions along the length direction of the supporting surface of the supporting bottom. The first wear-resistant inserts and the second wear-resistant inserts are each made of a wear-resistant material and include a sliding portion and an assembling portion. Among them, the sliding portion includes an elongated extended body, and the elongated extended body includes a sliding surface, which serves as the sliding surface of the valve plate or the guide rail. The assembling portion extends from the sliding portion in a direction opposite to the orientation of the sliding surface. The assembling portions of the two first wear-resistant inserts are respectively assembled in the valve plate slots. The cross-sectional shape of the valve plate slots corresponds to the cross-sectional shape of the assembling portions of the first wear-resistant inserts, and the sliding surface extends outside the surface of the valve plate. The assembling portion of the second wear-resistant insert is assembled in the guide rail slots. The cross-sectional shape of the guide rail slots corresponds to the cross-sectional shape of the assembling portion of the second wear-resistant insert, and the sliding surface extends outside the supporting surface. And When the valve plate and the guide rails are installed in place, the surfaces on both sides along the length direction of the valve plate slots opening of the valve plate body are respectively arranged corresponding to the supporting bottoms of the two guide rails, and the sliding surfaces of each first wear-resistant insert of the valve plate respectively fit and cooperate with the sliding surfaces of the second wear-resistant inserts of each guide rail to reciprocate along the extending direction of the second wear-resistant inserts of the guide rails.

2. The component according to claim 1, wherein At least one of the first wear-resistant inserts and the second wear-resistant inserts is made of a ceramic material.

3. The component according to claim 1, wherein In at least one of the first wear-resistant inserts and the second wear-resistant inserts: the assembling portion is columnar protrusions with axes perpendicular to the sliding surface that are discretely arranged along the extending direction of the elongated extended body.

4. The component according to claim 1, wherein In at least one of the first wear-resistant inserts and the second wear-resistant inserts: the assembling portion continuously extends along the extending direction of the elongated extended body of the sliding portion, and the end dimensions of the cross-section perpendicular to the sliding surface of the assembling portion remain unchanged or decrease, and At least one of the first wear-resistant inserts and the second wear-resistant inserts further includes columnar protrusions with axes perpendicular to the sliding surface that are discretely arranged along the extending direction of the elongated extended body from the surface of the assembling portion opposite to the sliding surface.

5. The component according to claim 3, wherein The cross-section of the columnar protrusion parallel to the sliding surface is circular or rectangular.

6. The component according to claim 4, wherein, The cross-section of the columnar protrusion parallel to the sliding surface is circular or rectangular.

7. The component according to claim 1, wherein, In at least one of the first wear-resistant inserts and the second wear-resistant inserts: the cross-section of the assembling portion perpendicular to the sliding surface has a tenon shape with an enlarged end.

8. The component according to claim 7, wherein, The shape of the tenon is T-shaped, Y-shaped, trapezoidal or half of these shapes.

9. The component according to claim 1, wherein, In at least one of the first wear-resistant insert and the second wear-resistant insert: The wear-resistant insert further includes a through hole or a blind hole whose axis is perpendicular to the sliding surface and opens from the side of the assembly part opposite to the sliding surface, for cooperating with a fastener to fasten the at least one to the valve plate and / or the guide rail.

10. The component according to any one of claims 1-9, wherein, The valve plate body is a straight plate with a rectangular, T-shaped, inverted T-shaped cross-section or a "concave-convex-concave" shape on the side.

11. The component according to any one of claims 1-9, wherein The sliding surface of the first wear-resistant insert extends beyond the outer surface of the wear-resistant lining or is flush with it.

12. The component according to claim 7, wherein When the cross-section perpendicular to the sliding surface of the assembly part of the first wear-resistant insert has the shape of the tenon, the valve plate slot penetrates the valve plate body along the length direction at least at one end, and has a through opening at the penetrated end of the valve plate body. The first wear-resistant insert is assembled in the valve plate slot through the through opening.

13. The component according to claim 9, wherein When the first wear-resistant insert further includes the through hole or the blind hole, the valve plate includes a through hole at a position corresponding to the through hole or the blind hole of the assembly part of the first wear-resistant insert.

14. The component according to any one of claims 1-9, wherein, The guiding part is made of a metal material, and the cross-sectional shape of the clamping groove of the guiding part is L-shaped or U-shaped.

15. The component according to any one of claims 1-9, wherein, A wear-resistant lining is further provided on at least the supporting surface of the guide rail, and the sliding surface of the second wear-resistant insert extends beyond the outer surface of the wear-resistant lining or is flush with it.

16. The component according to claim 7, wherein When the cross-section perpendicular to the sliding surface of the assembly part of the second wear-resistant insert has the shape of the tenon, the guide rail slot penetrates the guide rail along the length direction at least at one end, and has a through opening at the penetrated end of the guide rail. The second wear-resistant insert is assembled in the guide rail slot through the through opening.

17. The component according to claim 9, wherein, When the second wear-resistant insert further includes the through hole or the blind hole, the guide rail includes a through hole at a position corresponding to the through hole or the blind hole of the assembly part of the second wear-resistant insert.

18. A slide valve, comprising a valve housing, a throttle cone disposed within the valve housing, and the assembly according to any one of claims 1-17, wherein, The throttle cone includes a throttle cone bottom with a valve port and a hollow conical side part. The guide rail is installed on both sides of the valve port of the throttle cone bottom. When the valve plate reciprocates along the extending direction of the second wear-resistant insert, the valve port of the throttle cone bottom can be kept in any state between the fully closed state and the fully open state along with the movement of the valve plate.

19. The spool valve according to claim 18, wherein, The valve plate is a single valve plate, the valve housing is a T-shaped three-way pipe body, the three-way pipe body includes a main pipe and a branch pipe extending from the middle of the main pipe. The throttle cone is arranged in the main pipe, the throttle cone bottom is located at the intersection of the main pipe and the branch pipe. The valve plate further includes a valve rod extending from the valve plate along the sliding direction of the valve plate. The valve rod is arranged in the branch pipe parallel to the branch pipe and is driven by a driving device to make the valve plate reciprocate along the branch pipe.

20. The spool valve according to claim 18, wherein, The valve plate is composed of two split valve plates. The valve housing is a cross-shaped four-way pipe body, which includes an intersecting first pipe and a second pipe. The throttle cone is arranged in the first pipe, and the bottom of the throttle cone is located at the intersection of the first pipe and the second pipe. Each valve plate further includes a valve rod extending from the end of the valve plate opposite to the split end along the sliding direction of the valve plate. The valve rod is arranged in the second pipe parallel to the second pipe and is driven by a driving device to reciprocate the valve plate along the second pipe.

Images