Steel rail web grinding machine

Abstract

The utility model relates to the technical field of steel rail maintenance, in particular to a steel rail web grinding machine which comprises a machine frame, a power device, a transmission device, a grinding wheel assembly, a height adjusting device, a walking wheel assembly and a guide wheel assembly. One is arranged at the bottom of the front end of the rack, and the other is arranged at the bottom of the rear end of the rack; the guide wheel assembly comprises a cross beam, a longitudinal beam, depended wheel assemblies and guide wheel assemblies, the cross beam is fixedly connected with the rack, the longitudinal beam is connected with the cross beam, the depended wheel assemblies are arranged on the left side and the right side of the longitudinal beam respectively, and the two depended wheel assemblies are used for jointly clamping a steel rail; guide wheel assemblies are arranged at the front ends and / or the rear ends of the longitudinal beams. A steel rail can be clamped through the two depended wheel assemblies, the whole machine cannot be tilted, the purpose that the whole machine is independently placed on the steel rail under the condition that the front-back movement of the whole machine is not affected is achieved, the polishing operation efficiency is not affected, the damage probability of equipment is reduced, and the equipment is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of rail maintenance, and more specifically, to a rail web grinding machine. Background Art

[0002] A rail consists of three parts: a rail head, a rail web, and a rail base, and is a main component of a railway track. Its function is to guide the wheels of locomotives and vehicles forward, bear all the pressure of the vehicles, and transmit it to the sleepers. The rail must provide a continuous, smooth, and least-resistant rolling surface for the wheels; in electrified railways or automatic block sections, the rail can also be used as a track circuit. The main chemical component of the rail is iron, which will undergo an oxidation reaction with air and water after being exposed to the elements outdoors, and an oxide layer will inevitably form on its surface.

[0003] Currently, rust on the rail will have a negative impact on welding operations and the operation of installing dampers, so it is necessary to remove rust from the surface of the rail web. In order to efficiently and high-quality grind the rail web, some rail web grinding machines have gradually emerged on the market. In the prior art, the structure disclosed in the patent (CN201420766816) is very suitable for the requirements. This device controls the movement of the grinding wheel in different directions through a linkage mechanism, ensuring the lightweight of the device while being easy to operate; the adjusting plate fixes the height of the grinding wheel, ensuring the grinding accuracy.

[0004] Objective problems existing in the prior art (CN201420766816):

[0005] (1) Existing grinding equipment has the problem that it cannot be fixed on the rail, and it requires personnel to straighten the equipment, which affects the efficiency of the grinding operation and increases the probability of equipment damage;

[0006] (2) The up and down adjustment and positioning of the equipment adopt pure mechanical positioning, and two steps are required to control the equipment. This structure has multiple gears for height adjustment, but the position between any two gears cannot be adjusted, that is, this structure belongs to "multi-point adjustment". For example: when it is necessary to adjust the gear to a position between any two gears, this cannot be achieved, and it can only be adjusted to the previous gear or the next gear, rather than being adjusted to any position between two gears, resulting in problems such as inaccurate positioning and inconvenient adjustment;

[0007] (3) The equipment does not design a safety protection device for the grinding wheel, and both the grinding wheel itself and the sparks generated during its operation may cause harm to surrounding personnel and the environment. Summary of the Utility Model

[0008] The purpose of the utility model is to provide a rail web grinding machine, which can solve at least one problem existing in the prior art.

[0009] The technical solution of the present utility model is realized as follows:

[0010] A rail web grinding machine includes a frame, a power device for providing a power source, a transmission device for transmitting the power generated by the power device, a grinding wheel assembly for grinding the rail web, and a height adjustment device for adjusting the height of the grinding wheel assembly; the power device is connected to the frame, the output end of the power device is connected to the input end of the transmission device, and the output end of the transmission device is connected to the grinding wheel assembly; it further includes a traveling wheel assembly and a guiding wheel assembly, the traveling wheel assembly and the guiding wheel assembly are respectively arranged at the bottom of the frame, and one of them is arranged at the front bottom of the frame and the other is arranged at the rear bottom of the frame;

[0011] The guiding wheel assembly includes a cross beam, a longitudinal beam, a abutting wheel assembly and a guiding wheel assembly, the cross beam is fixedly connected to the frame, the longitudinal beam is connected to the cross beam, the abutting wheel assemblies are respectively arranged on the left and right sides of the longitudinal beam, and the two abutting wheel assemblies are used for jointly clamping the rail; the guiding wheel assembly is arranged at the front end and / or the rear end of the longitudinal beam.

[0012] Further, the abutting wheel assembly includes an abutting wheel and a distance adjustment assembly, the distance adjustment assembly is connected to the longitudinal beam, and the abutting wheel is connected to the distance adjustment assembly through an abutting wheel shaft, and the distance adjustment assembly can adjust the position of the abutting wheel in the left-right direction.

[0013] Further, the distance adjustment assembly includes a sliding cylinder, a sliding rod, a pull rod and an elastic member, one end of the sliding cylinder is fixedly connected to the longitudinal beam, the other end is provided with a baffle, and a through hole is opened on the baffle, the sliding rod is arranged in the sliding cylinder, the pull rod passes through the through hole and is connected to one end of the sliding rod, and the elastic member is arranged between the sliding rod and the baffle;

[0014] The sliding rod is connected to the abutting wheel through the abutting wheel shaft, and a movable hole for the displacement of the abutting wheel shaft is opened at the bottom of the sliding cylinder.

[0015] Further, the sliding rod is slidably connected to the sliding cylinder;

[0016] The elastic member adopts a spring;

[0017] A pull ring or a handle is arranged at the other end of the pull rod;

[0018] A clamping groove is opened on the sliding rod, and one end of the abutting wheel shaft is assembled in the clamping groove.

[0019] Further, the height adjustment device adopts a hydraulic cylinder, a pneumatic cylinder or an electric telescopic rod, one end of the height adjustment device is fixed to the frame, and the other end is hinged to the transmission device or the grinding wheel assembly.

[0020] Furthermore, the height adjustment device includes a first hinge seat, a second hinge seat, a hinge frame, a controllable gas spring cylinder, and a height adjustment handle. The first hinge seat is arranged on the frame, the second hinge seat is arranged on the transmission device or the grinding wheel assembly. One end of the hinge frame is hinged to the first hinge seat through a first rotating shaft, and the other end is hinged to the second hinge seat through a second rotating shaft. A long hole for the displacement of the second rotating shaft is formed on the hinge frame.

[0021] One end of the controllable gas spring cylinder is hinged to the first hinge seat through a third rotating shaft, and the other end is hinged to the hinge frame through a fourth rotating shaft. The axial directions of the first rotating shaft, the second rotating shaft, the third rotating shaft, and the fourth rotating shaft are the same. The height adjustment handle is arranged on the hinge frame.

[0022] Furthermore, the height adjustment device further includes a valve switch and a wire. The valve switch is electrically connected to the controllable gas spring cylinder through the wire.

[0023] Furthermore, the grinding wheel assembly includes a grinding wheel, a grinding wheel shaft, a grinding wheel protective cover, and a grinding wheel support. The grinding wheel is connected to and driven by the output end of the transmission device through the grinding wheel shaft. The grinding wheel protective cover semi - surrounds the grinding wheel, and the grinding wheel protective cover is connected to the transmission device through the grinding wheel support, and / or the grinding wheel protective cover is hinged to the frame through the grinding wheel support.

[0024] Furthermore, a commutator is further included. The output end of the transmission device is connected to the grinding wheel assembly through the commutator.

[0025] Furthermore, the commutator adopts a spiral bevel gear commutator.

[0026] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0027] The rail web grinding machine provided by this application realizes the guiding and walking of the whole machine on the rail through the traveling wheel assembly and the guiding wheel assembly, and can clamp the rail through two abutting wheel assemblies without toppling the whole machine, so that the whole machine can be independently placed on the rail, without the need for personnel to straighten the equipment, achieving the purpose of being independently placed on the rail without affecting the forward and backward movement of the whole machine, not affecting the grinding operation efficiency, and further reducing the probability of equipment damage, thus achieving the ultimate goal of protecting the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0029] Figure 1 Is a perspective view of the rail web grinding machine of the present utility model;

[0030] Figure 2 Is an axonometric view of the rail web grinding machine of the present utility model;

[0031] Figure 3 Is a left view of the rail web grinding machine of the present utility model;

[0032] Figure 4 Is a right view of the rail web grinding machine of the present utility model;

[0033] Figure 5 For the present utility model Figure 4 Partial enlarged view of the structure within the A frame in;

[0034] Figure 6 Is a structural schematic diagram of the guide wheel assembly of the present utility model;

[0035] Figure 7 Is a structural schematic diagram of the grinding wheel assembly of the present utility model.

[0036] In the figure:

[0037] 1 - Frame; 2 - Power device; 3 - Transmission device;

[0038] 4 - Guide wheel assembly; 401 - Slide cylinder; 402 - Pull rod; 403 - Longitudinal beam; 404 - Cross beam; 405 - Guide wheel assembly; 4051 - Guide wheel; 4052 - Guide wheel shaft; 406 - Elastic member; 407 - Baffle; 408 - Slide rod; 409 - Backup wheel shaft; 410 - Backup wheel; 411 - First U-shaped frame; 412 - Rotating connection assembly;

[0039] 5 - Height adjustment device; 501 - First hinge seat; 502 - Second hinge seat; 503 - Hinge frame; 5031 - Long strip hole; 504 - Controllable gas spring cylinder; 505 - Height adjustment handle; 506 - First rotating shaft; 507 - Second rotating shaft; 508 - Third rotating shaft; 509 - Fourth rotating shaft; 510 - Valve switch; 511 - Conducting wire;

[0040] 6 - Grinding wheel assembly; 601 - Grinding wheel support; 602 - Grinding wheel shaft; 603 - Grinding wheel protective cover; 604 - Grinding wheel; 605 - Grinding wheel gland;

[0041] 7 - Commutator; 8 - Hinged rod;

[0042] 9 - Travel wheel assembly; 901 - Second U - shaped frame; 902 - Travel wheel; 903 - Travel wheel shaft;

[0043] 10 - Engine mount; 11 - Shock - absorbing rubber pad. Specific embodiments

[0044] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0046] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0047] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0048] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0049] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0050] The following will describe in detail some embodiments of the present utility model with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0051] Embodiment 1

[0052] Referring to Figures 1-7 , this embodiment provides a rail web grinding machine, which includes a frame 1, a power device 2 for providing a power source, a transmission device 3 for transmitting the power generated by the power device 2, a grinding wheel assembly 6 for grinding the rail web, and a height adjustment device 5 for adjusting the height of the grinding wheel assembly 6; the power device 2 is connected to the frame 1, that is, the power device 2 is arranged on the frame 1. The power device 2 uses an engine, and the engine is installed on an engine seat 10, and the engine seat 10 is connected to the frame 1 through a shock-absorbing rubber pad 11. The output end of the engine is connected to the input end of the transmission device 3, and the output end of the transmission device 3 is connected to the grinding wheel assembly 6; the transmission device 3 can adopt a belt transmission assembly, a gear transmission assembly or a sprocket transmission assembly, that is, the engine can drive the grinding wheel assembly 6 by means of belt transmission, gear transmission or sprocket transmission.

[0053] The rail web grinding machine (referred to as the machine body or equipment) also includes a traveling wheel assembly 9 and a guiding wheel assembly 4. The traveling wheel assembly 9 and the guiding wheel assembly 4 are respectively arranged at the bottom of the frame 1, and one of them is arranged at the bottom of the front end of the frame 1 and the other is arranged at the bottom of the rear end of the frame 1; that is, when the traveling wheel assembly 9 is arranged at the bottom of the front end of the frame 1, the guiding wheel assembly 4 is arranged at the bottom of the rear end of the frame 1; or when the traveling wheel assembly 9 is arranged at the bottom of the rear end of the frame 1, the guiding wheel assembly 4 is arranged at the bottom of the front end of the frame 1.

[0054] In this embodiment, preferably, the traveling wheel assembly 9 is arranged at the bottom of the rear end of the frame 1, and the guiding wheel assembly 4 is arranged at the bottom of the front end of the frame 1.

[0055] The guide wheel assembly 4 includes a cross beam 404, a longitudinal beam 403, a supporting wheel assembly, and a guide wheel assembly 405. The cross beam 404 is fixedly connected to the frame 1. The length direction of the cross beam 404 is the left-right direction. The cross beam 404 is rotatably connected to the longitudinal beam 403. The length direction of the longitudinal beam 403 is the front-back direction.

[0056] Preferably, the longitudinal beam 403 is fixedly arranged at the bottom of the cross beam 404, and the longitudinal beam 403 is connected to the cross beam 404 through a rotating connection assembly 412. Specifically, the rotating connection assembly 412 includes a column, a bearing, a bolt, and a gasket. A bearing hole is formed in the cross beam 404 and the bearing is installed. A column is fixedly arranged at the top of the longitudinal beam 403. The column is correspondingly installed in the bearing. A blocking portion is formed at the lower part of the column to block the downward movement of the bearing and the cross beam 404. A threaded hole is formed at the top of the column and a bolt is installed in the threaded hole. An axially limiting and blocking gasket is installed on the screw portion of the bolt. The vertical limit of the bearing therebetween is realized jointly by the blocking portion of the column and the gasket. In this way, the whole of the longitudinal beam 403, the supporting wheel assembly, and the guide wheel assembly 405 can rotate horizontally through the column and the bearing to adapt to the bending degree of the rail itself.

[0057] Supporting wheel assemblies are respectively arranged on the left and right sides of the longitudinal beam 403. The two groups of supporting wheel assemblies are used to jointly clamp the rail, and a guide wheel assembly 405 is arranged at the front end and / or the rear end of the longitudinal beam 403.

[0058] In this embodiment, the supporting wheel assembly includes a supporting wheel 410 and a distance adjusting assembly. The distance adjusting assembly is connected to the longitudinal beam 403, and the supporting wheel 410 is connected to the distance adjusting assembly through a supporting wheel shaft 409. The distance adjusting assembly can adjust the position of the supporting wheel 410 in the left-right direction.

[0059] Specifically, the distance adjustment component includes a sliding cylinder 401, a sliding rod 408, a pull rod 402, and an elastic member 406. The sliding cylinder 401 is arranged perpendicular to the longitudinal beam 403, that is, the length direction of the sliding cylinder 401 is perpendicular to the length direction of the longitudinal beam 403. One end of the sliding cylinder 401 is fixedly connected to the longitudinal beam 403, and the other end is provided with a baffle 407. Among them, one end of the sliding cylinder 401 is fixedly connected to the longitudinal beam 403 by welding or through several groups of bolt assemblies. The baffle 407 and the sliding cylinder 401 are of an integral structure or are fixedly connected by bolt connection. Preferably, the baffle 407 and the end of the sliding cylinder 401 are fixedly connected by several groups of bolt assemblies. A through hole is opened in the baffle 407 in the left-right direction. The sliding rod 408 is arranged in the sliding cylinder 401, and the sliding rod 408 is slidably connected to the inner wall of the sliding cylinder 401. The pull rod 402 passes through the through hole and is connected to one end of the sliding rod 408. The elastic member 406 is arranged between the sliding rod 408 and the baffle 407. The elastic member 406 is preferably a spring. One end of the pull rod 402 located inside the sliding cylinder 401 passes through the spring, and a pull ring, a handle, a grip, or an anti-slip sleeve for anti-slip can be arranged at the end of the pull rod 402 located outside the sliding cylinder 401, so as to facilitate holding and pulling the pull rod 402 outwards. The supporting wheel 410 is located below the sliding cylinder 401, and the sliding rod 408 is connected to the supporting wheel 410 through the supporting wheel shaft 409. An activity hole for the displacement of the supporting wheel shaft 409 is opened at the bottom of the sliding cylinder 401. The supporting wheel 410 and the supporting wheel shaft 409 are rotatably connected through a bearing, and the supporting wheel 410 can rotate horizontally around the supporting wheel shaft 409. When the pull rod 402 is pulled outwards (in the direction away from the longitudinal beam 403), the sliding rod 408 moves together and compresses the spring. At the same time, the supporting wheel shaft 409 and the supporting wheel 410 move outwards and away from the longitudinal beam 403 (simultaneously, the supporting wheel shaft 409 displaces in the activity hole). In this way, the distance between the two distance adjustment components can be adjusted, and it can also adapt to rails of different widths. After adjusting the distance between the two distance adjustment components to be greater than the width of the rail, the two distance adjustment components are placed on both sides of the rail, and the pull rod 402 is released. The spring restores its elastic deformation. Then, under the elastic force of the spring, the supporting wheels 410 on both sides clamp the rail, and the equipment will not tilt or fall. There is no need for personnel to straighten the equipment, achieving the purpose of placing the rail waist grinding machine independently on the rail without affecting the forward and backward movement, without affecting the grinding operation efficiency, and further reducing the probability of equipment damage, thereby achieving the ultimate purpose of protecting the equipment. At the same time, since the supporting wheel 410 and the supporting wheel shaft 409 are connected by a bearing, it does not affect the forward and backward movement of the equipment while clamping the equipment.

[0060] Preferably, guide wheel assemblies 405 are provided at both the front end and the rear end of the longitudinal beam 403. The guide wheel assembly 405 includes a guide wheel 4051 with double rims and a guide wheel shaft 4052. The guide wheel 4051 is mounted on the guide wheel shaft 4052 and can rotate on the guide wheel shaft 4052. A first U-shaped frame 411 is provided at the end of the longitudinal beam 403. The guide wheel assembly 405 is integrally mounted in the inner cavity of the first U-shaped frame 411, and both ends of the guide wheel shaft 4052 are respectively fixed on the two side plates of the first U-shaped frame 411. Specifically, both ends of the guide wheel shaft 4052 are respectively connected to the two side plates of the first U-shaped frame 411 by bolts.

[0061] The running wheel assembly 9 includes a running wheel 902 with double rims and a running wheel shaft 903. The running wheel 902 is mounted on the running wheel shaft 903 and can rotate on the running wheel shaft 903. A second U-shaped frame 901 with an opening facing downward is provided at the bottom of the rear end of the frame 1. The running wheel assembly 9 is integrally mounted in the inner cavity of the second U-shaped frame 901, and both ends of the running wheel shaft are respectively fixed on the two side plates of the second U-shaped frame 901. Specifically, both ends of the running wheel shaft 903 are respectively connected to the two side plates of the second U-shaped frame 901 by bolts.

[0062] In this embodiment, a commutator 7 is further included. The output end of the transmission device 3 is connected to the grinding wheel assembly 6 through the commutator 7. Among them, the commutator 7 can adopt a spiral bevel gear commutator 7 to convert the horizontal rotation of the transmission device 3 into a vertical rotation.

[0063] In this embodiment, the height adjustment device 5 includes a first hinge seat 501, a second hinge seat 502, a hinge frame 503, a controllable gas spring cylinder 504, a height adjustment handle 505, a valve switch 510, and a wire 511. The first hinge seat 501 is arranged on the frame 1, and the second hinge seat 502 is arranged on the transmission device 3 or the grinding wheel assembly 6. One end of the hinge frame 503 is hinged to the first hinge seat 501 through a first rotating shaft 506, and the other end is hinged to the second hinge seat 502 through a second rotating shaft 507. A long hole 5031 for the displacement of the second rotating shaft 507 is formed on the hinge frame 503. One end of the controllable gas spring cylinder 504 is hinged to the first hinge seat 501 through a third rotating shaft 508, and the other end is hinged to the hinge frame 503 through a fourth rotating shaft 509. The axial directions of the first rotating shaft 506, the second rotating shaft 507, the third rotating shaft 508, and the fourth rotating shaft 509 are the same. The height adjustment handle 505 is arranged on the hinge frame 503. The valve switch 510 is arranged on the height adjustment handle 505, and the valve switch 510 is connected to the air valve of the controllable gas spring cylinder 504 through the wire 511. The valve switch 510 is used to control the opening and closing state of the air valve of the controllable gas spring cylinder 504. When the valve switch 510 is in the open state, the air valve of the controllable gas spring cylinder 504 is opened through the wire 511. At this time, by moving the height adjustment handle 505 forward or backward, the connected transmission device 3 can be controlled, and further the height of the spiral bevel gear commutator 7 and the grinding wheel assembly 6 can be controlled. After adjusting to the target position, release (close) the valve switch 510 to close the air valve of the controllable gas spring cylinder 504. At this time, the height of the grinding wheel assembly 6 is locked, and the grinding operation can be carried out. Compared with the "multi-point adjustment" in the prior art, the height adjustment device 5 of the present application belongs to "whole-section adjustment", and can stop and lock suddenly at any position within the telescopic length of the controllable gas spring cylinder 504 or within the whole section. It can achieve the effect of stopping at any time within the whole section, with accurate positioning, simple and convenient height adjustment.

[0064] In this embodiment, the grinding wheel assembly 6 includes a grinding wheel 604, a grinding wheel shaft 602, a grinding wheel guard 603, and a grinding wheel support 601. The grinding wheel 604 is connected to and driven by the output end of the transmission device 3 through the grinding wheel shaft 602. A grinding wheel gland 605 for pressing the grinding wheel 604 is further arranged at the bottom end of the grinding wheel shaft 602. The grinding wheel 604 adopts a white corundum grinding wheel 604. The grinding wheel guard 603 semi-surrounds the grinding wheel 604, and a small part of the grinding wheel 604 near the rail is exposed outside for grinding the rail, while the other part is surrounded by the grinding wheel guard 603. During the grinding operation, the grinding wheel guard 603 prevents sparks and grinding waste from splashing outward onto the human body and causing harm to the surrounding personnel, can separate the grinding wheel 604 from the staff to protect the safety of both sides, and at the same time shields the sparks to prevent the sparks from igniting clothes or dry grass.

[0065] The grinding wheel guard 603 is connected to the transmission device 3 through the grinding wheel support 601, and / or the grinding wheel guard 603 is hinged to the machine frame 1 through the grinding wheel support 601. Preferably, the lower part of the grinding wheel guard 603 is welded or bolted to the grinding wheel support 601, the upper part of the grinding wheel support 601 is bolted to the housing of the spiral bevel gear commutator 7 through a plurality of bolts, and at the same time, a hinged rod 8 is connected to the upper part of the grinding wheel support 601. One end of the hinged rod 8 is hinged to the grinding wheel support 601, and the other end is hinged to the front end of the machine frame 1. When the height adjustment device 5 makes a height adjustment, the transmission device 3, the grinding wheel assembly 6, and the spiral bevel gear commutator 7 are lifted and lowered together, and at the same time, one end of the hinged rod 8 close to the grinding wheel support 601 is lifted and lowered together. The setting of the hinged rod 8 can improve the connection stability and lifting stability of the grinding wheel assembly 6.

[0066] Embodiment 2

[0067] This embodiment provides a rail waist grinding machine, which is different from that of Embodiment 1 in that the height adjustment device 5 in this embodiment adopts a hydraulic cylinder, a pneumatic cylinder or an electric telescopic rod. One end of the height adjustment device 5 is fixed to the machine frame 1, and the other end is hinged to the transmission device 3 or the grinding wheel assembly 6. Alternatively, an installation plate can be provided at the bottom of the machine frame 1, and the hydraulic cylinder, the pneumatic cylinder or the electric telescopic rod is installed on the installation plate and is located directly below the transmission device 3. The hydraulic cylinder, the pneumatic cylinder or the electric telescopic rod is vertically arranged to drive the transmission device 3 and the grinding wheel assembly 6 to lift and lower integrally. With this structure of the height adjustment device 5, compared with the "multi-point adjustment" in the prior art, the height adjustment device 5 in this embodiment also belongs to "integral adjustment", and can stop and lock suddenly at any position within the telescopic length of the hydraulic cylinder, the pneumatic cylinder or the electric telescopic rod, or within the entire section, and can achieve the effect of stopping at any time within the entire section, with accurate positioning and simple and convenient height adjustment.

[0068] The beneficial effects of the technical solution of the present utility model are:

[0069] 1. By installing a controllable gas spring cylinder and a valve switch 510 between the lifting handle and the rear end of the machine frame 1 to control the height of the grinding wheel 604, it becomes stepless adjustment, which can perform more comprehensive grinding operations and reduce the operation steps of the equipment. The height adjustment device 5 of the present application adopts "integral height adjustment". Compared with the "multi-gear adjustment" or "multi-point adjustment" in the prior art, the gas spring adjustment of the controllable gas spring cylinder 504 belongs to stepless adjustment, and can be adjusted to any height, and can be adjusted at any position within the entire section, with a wide adjustment range, accurate positioning, and effectively improving the operation efficiency.

[0070] 2. The supporting wheel 410 of the guide wheel assembly 4 tightly holds the top of the rail under the action of the spring, and clamps the equipment by means of the shape of the rail top, so that the equipment will not tilt and fall to the ground. At the same time, since the supporting wheel 410 and the supporting wheel shaft 409 are connected by bearings, it does not affect the forward and backward movement of the equipment while clamping the equipment, reducing the working intensity of the staff, avoiding the occurrence of meaningless labor, and protecting the equipment from damage caused by falling to the ground.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

[0072] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, 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 rail web grinding machine, comprising a frame (1), a power device (2) for providing a power source, a transmission device (3) for transmitting the power generated by the power device (2), a grinding wheel assembly (6) for grinding the rail web, and a height adjustment device (5) for adjusting the height of the grinding wheel assembly (6); the power device (2) is connected to the frame (1), the output end of the power device (2) is connected to the input end of the transmission device (3), and the output end of the transmission device (3) is connected to the grinding wheel assembly (6); characterized in that, It further includes a traveling wheel assembly (9) and a guide wheel assembly (4). The traveling wheel assembly (9) and the guide wheel assembly (4) are respectively arranged at the bottom of the frame (1), and one of them is arranged at the front bottom of the frame (1) and the other is arranged at the rear bottom of the frame (1). The guide wheel assembly (4) includes a cross beam (404), a longitudinal beam (403), a wheel abutting assembly and a guide wheel assembly (405). The cross beam (404) is fixedly connected to the frame (1), the longitudinal beam (403) is connected to the cross beam (404), wheel abutting assemblies are respectively arranged on the left and right sides of the longitudinal beam (403), and the two groups of wheel abutting assemblies are used to jointly clamp the rail; the guide wheel assembly (405) is arranged at the front end and / or the rear end of the longitudinal beam (403).

2. The rail web grinding machine according to claim 1, characterized in that, The wheel abutting assembly includes a wheel abutting wheel (410) and a distance adjusting assembly. The distance adjusting assembly is connected to the longitudinal beam (403), and the wheel abutting wheel (410) is connected to the distance adjusting assembly through a wheel abutting shaft (409). The distance adjusting assembly can adjust the position of the wheel abutting wheel (410) in the left-right direction.

3. The rail web grinding machine according to claim 2, characterized in that, The distance adjusting assembly includes a sliding cylinder (401), a sliding rod (408), a pull rod (402) and an elastic member (406). One end of the sliding cylinder (401) is fixedly connected to the longitudinal beam (403), and a baffle (407) is arranged at the other end. A perforation is formed in the baffle (407). The sliding rod (408) is arranged in the sliding cylinder (401). The pull rod (402) passes through the perforation and is connected to one end of the sliding rod (408), and the elastic member (406) is arranged between the sliding rod (408) and the baffle (407). The sliding rod (408) is connected to the wheel abutting wheel (410) through the wheel abutting shaft (409), and a moving hole for the displacement of the wheel abutting shaft (409) is formed at the bottom of the sliding cylinder (401).

4. The rail web grinding machine according to claim 3, characterized in that, The sliding rod (408) is slidably connected to the sliding cylinder (401). The elastic member (406) is a spring. A pull ring or a handle is arranged at the other end of the pull rod (402). A clamping groove is formed on the sliding rod (408), and one end of the wheel abutting shaft (409) is assembled in the clamping groove.

5. The rail web grinding machine according to claim 1, wherein The height adjusting device (5) is a hydraulic cylinder, a pneumatic cylinder or an electric telescopic rod. One end of the height adjusting device (5) is fixed to the frame (1), and the other end is hinged to the transmission device (3) or the grinding wheel assembly (6).

6. The rail web grinding machine according to claim 1, wherein, The height adjustment device (5) includes a first hinge seat (501), a second hinge seat (502), a hinge frame (503), a controllable gas spring cylinder (504) and a height adjustment handle (505). The first hinge seat (501) is arranged on the frame (1), the second hinge seat (502) is arranged on the transmission device (3) or the grinding wheel assembly (6). One end of the hinge frame (503) is hinged to the first hinge seat (501) through a first rotating shaft (506), and the other end is hinged to the second hinge seat (502) through a second rotating shaft (507). A long hole (5031) for the displacement of the second rotating shaft (507) is formed on the hinge frame (503). One end of the controllable gas spring cylinder (504) is hinged to the first hinge seat (501) through a third rotating shaft (508), and the other end is hinged to the hinge frame (503) through a fourth rotating shaft (509). The axial directions of the first rotating shaft (506), the second rotating shaft (507), the third rotating shaft (508) and the fourth rotating shaft (509) are the same. The height adjustment handle (505) is arranged on the hinge frame (503).

7. The rail web grinding machine according to claim 6, characterized in that, The height adjustment device (5) further includes a valve switch (510) and a wire (511). The valve switch (510) is electrically connected to the controllable gas spring cylinder (504) through the wire (511).

8. The rail web grinding machine according to claim 1, characterized in that, The grinding wheel assembly (6) includes a grinding wheel (604), a grinding wheel shaft (602), a grinding wheel guard (603) and a grinding wheel support (601). The grinding wheel (604) is connected to the output end of the transmission device (3) through the grinding wheel shaft (602) for transmission. The grinding wheel guard (603) semi - surrounds the grinding wheel (604), and the grinding wheel guard (603) is connected to the transmission device (3) through the grinding wheel support (601), and / or the grinding wheel guard (603) is hinged to the frame (1) through the grinding wheel support (601).

9. The rail web grinding machine according to claim 1, characterized in that, It further includes a commutator (7). The output end of the transmission device (3) is connected to the grinding wheel assembly (6) through the commutator (7).

10. The rail web grinding machine according to claim 9, characterized in that, The commutator (7) adopts a spiral bevel gear commutator (7).

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